From bc88004ad1acadd2799b47d8fff5c52d219299df Mon Sep 17 00:00:00 2001
From: Matthias Schmidt <gravatronics@live.com>
Date: Sat, 14 Jul 2012 14:32:19 +0200
Subject: [PATCH] Removes unused use statements

---
 .../files/lib/acp/action/UninstallPackageAction.class.php  | 1 -
 .../files/lib/acp/form/AbstractOptionListForm.class.php    | 1 -
 .../install/files/lib/acp/form/CronjobAddForm.class.php    | 1 -
 .../files/lib/acp/form/MasterPasswordInitForm.class.php    | 1 -
 wcfsetup/install/files/lib/acp/form/OptionForm.class.php   | 2 --
 wcfsetup/install/files/lib/acp/form/UserAddForm.class.php  | 1 -
 .../files/lib/acp/form/UserAssignToGroupForm.class.php     | 1 -
 .../lib/acp/form/UserEmailAddressExportForm.class.php      | 2 --
 .../install/files/lib/acp/form/UserGroupAddForm.class.php  | 3 ---
 .../install/files/lib/acp/form/UserGroupEditForm.class.php | 1 -
 .../files/lib/acp/form/UserOptionListForm.class.php        | 4 ----
 .../install/files/lib/acp/form/UserSearchForm.class.php    | 1 -
 .../files/lib/acp/form/UsersMassProcessingForm.class.php   | 1 -
 .../files/lib/acp/page/ACPSessionLogListPage.class.php     | 1 -
 .../install/files/lib/acp/page/CronjobListPage.class.php   | 1 -
 .../files/lib/acp/page/CronjobLogListPage.class.php        | 1 -
 wcfsetup/install/files/lib/acp/page/IndexPage.class.php    | 1 -
 .../files/lib/acp/page/PackageListDetailedPage.class.php   | 1 -
 wcfsetup/install/files/lib/acp/page/PackagePage.class.php  | 1 -
 wcfsetup/install/files/lib/acp/page/UserListPage.class.php | 1 -
 .../install/files/lib/action/AJAXProxyAction.class.php     | 7 ++-----
 .../files/lib/data/DatabaseObjectDecorator.class.php       | 1 -
 .../files/lib/data/acp/session/ACPSession.class.php        | 1 -
 .../lib/data/acp/template/ACPTemplateAction.class.php      | 2 --
 .../install/files/lib/data/cronjob/CronjobEditor.class.php | 1 -
 .../language/category/LanguageCategoryAction.class.php     | 2 --
 .../lib/data/language/item/LanguageItemAction.class.php    | 2 --
 .../install/files/lib/data/option/OptionAction.class.php   | 2 --
 .../data/option/category/OptionCategoryAction.class.php    | 2 --
 .../plugin/PackageInstallationPlugin.class.php             | 1 -
 .../plugin/PackageInstallationPluginEditor.class.php       | 1 -
 .../package/update/server/PackageUpdateServer.class.php    | 1 -
 .../update/server/PackageUpdateServerAction.class.php      | 2 --
 .../update/server/PackageUpdateServerEditor.class.php      | 1 -
 .../install/files/lib/data/sitemap/SitemapAction.class.php | 1 -
 .../install/files/lib/data/style/ActiveStyle.class.php     | 2 --
 .../files/lib/data/template/TemplateAction.class.php       | 2 --
 .../lib/data/template/group/TemplateGroupAction.class.php  | 2 --
 .../files/lib/data/user/group/UserGroupEditor.class.php    | 1 -
 wcfsetup/install/files/lib/system/WCF.class.php            | 3 ---
 .../lib/system/application/AbstractApplication.class.php   | 2 --
 .../install/files/lib/system/cache/CacheHandler.class.php  | 1 -
 .../system/cache/builder/CategoryCacheBuilder.class.php    | 1 -
 .../cache/builder/EventListenerCacheBuilder.class.php      | 1 -
 .../lib/system/cache/builder/OptionCacheBuilder.class.php  | 1 -
 .../lib/system/cache/builder/PackageCacheBuilder.class.php | 1 -
 .../files/lib/system/category/CategoryHandler.class.php    | 1 -
 .../lib/system/clipboard/ClipboardEditorItem.class.php     | 1 -
 .../lib/system/cronjob/SessionCleanUpCronjob.class.php     | 1 -
 .../install/files/lib/system/database/Database.class.php   | 3 ---
 .../files/lib/system/database/MySQLDatabase.class.php      | 1 -
 .../files/lib/system/database/PostgreSQLDatabase.class.php | 1 -
 .../system/database/editor/MySQLDatabaseEditor.class.php   | 1 -
 .../system/database/statement/PreparedStatement.class.php  | 1 -
 .../form/element/MultipleSelectionFormElement.class.php    | 1 -
 .../system/form/element/PasswordInputFormElement.class.php | 1 -
 .../lib/system/form/element/TextInputFormElement.class.php | 1 -
 .../files/lib/system/language/LanguageFactory.class.php    | 1 -
 .../lib/system/language/LanguageServerProcessor.class.php  | 1 -
 wcfsetup/install/files/lib/system/menu/TreeMenu.class.php  | 1 -
 .../install/files/lib/system/menu/page/PageMenu.class.php  | 1 -
 .../files/lib/system/option/BooleanOptionType.class.php    | 1 -
 .../files/lib/system/option/DateOptionType.class.php       | 1 -
 .../files/lib/system/option/OptionHandler.class.php        | 1 -
 .../files/lib/system/package/PackageArchive.class.php      | 1 -
 .../package/PackageInstallationNodeBuilder.class.php       | 1 -
 .../package/PackageUninstallationDispatcher.class.php      | 2 --
 .../lib/system/package/PackageUpdateDispatcher.class.php   | 1 -
 .../plugin/ACPTemplatePackageInstallationPlugin.class.php  | 1 -
 .../package/plugin/FilePackageInstallationPlugin.class.php | 1 -
 .../package/plugin/PIPPackageInstallationPlugin.class.php  | 1 -
 .../plugin/PageMenuPackageInstallationPlugin.class.php     | 2 --
 .../plugin/StylePackageInstallationPlugin.class.php        | 1 -
 .../plugin/TemplatePackageInstallationPlugin.class.php     | 2 --
 .../files/lib/system/session/SessionHandler.class.php      | 1 -
 .../plugin/HtmlOptionsFunctionTemplatePlugin.class.php     | 1 -
 .../template/plugin/IconCompilerTemplatePlugin.class.php   | 1 -
 .../template/plugin/LangCompilerTemplatePlugin.class.php   | 1 -
 .../plugin/PrependCompilerTemplatePlugin.class.php         | 1 -
 .../plugin/StaticlangTemplatePluginCompiler.class.php      | 1 -
 80 files changed, 2 insertions(+), 108 deletions(-)

diff --git a/wcfsetup/install/files/lib/acp/action/UninstallPackageAction.class.php b/wcfsetup/install/files/lib/acp/action/UninstallPackageAction.class.php
index 1e297571c7..ef60241064 100644
--- a/wcfsetup/install/files/lib/acp/action/UninstallPackageAction.class.php
+++ b/wcfsetup/install/files/lib/acp/action/UninstallPackageAction.class.php
@@ -5,7 +5,6 @@ use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\data\package\installation\queue\PackageInstallationQueueEditor;
 use wcf\data\package\Package;
 use wcf\system\exception\IllegalLinkException;
-use wcf\system\exception\SystemException;
 use wcf\system\package\PackageUninstallationDispatcher;
 use wcf\system\WCF;
 use wcf\util\StringUtil;
diff --git a/wcfsetup/install/files/lib/acp/form/AbstractOptionListForm.class.php b/wcfsetup/install/files/lib/acp/form/AbstractOptionListForm.class.php
index 732a440f53..80afcb4cc4 100755
--- a/wcfsetup/install/files/lib/acp/form/AbstractOptionListForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/AbstractOptionListForm.class.php
@@ -2,7 +2,6 @@
 namespace wcf\acp\form;
 use wcf\form\AbstractForm;
 use wcf\system\exception\UserInputException;
-use wcf\system\option\OptionHandler;
 
 /**
  * This class provides default implementations for a list of options.
diff --git a/wcfsetup/install/files/lib/acp/form/CronjobAddForm.class.php b/wcfsetup/install/files/lib/acp/form/CronjobAddForm.class.php
index ea2e835a3f..7038ebae32 100755
--- a/wcfsetup/install/files/lib/acp/form/CronjobAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/CronjobAddForm.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\acp\form;
 use wcf\data\cronjob\CronjobAction;
-use wcf\data\package\Package;
 use wcf\system\exception\SystemException;
 use wcf\system\exception\UserInputException;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/acp/form/MasterPasswordInitForm.class.php b/wcfsetup/install/files/lib/acp/form/MasterPasswordInitForm.class.php
index da78285dfa..9599072c83 100755
--- a/wcfsetup/install/files/lib/acp/form/MasterPasswordInitForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/MasterPasswordInitForm.class.php
@@ -5,7 +5,6 @@ use wcf\system\exception\UserInputException;
 use wcf\system\io\File;
 use wcf\system\Regex;
 use wcf\system\WCF;
-use wcf\util\MathUtil;
 use wcf\util\StringUtil;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/OptionForm.class.php b/wcfsetup/install/files/lib/acp/form/OptionForm.class.php
index a760625388..e64797b1a3 100644
--- a/wcfsetup/install/files/lib/acp/form/OptionForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/OptionForm.class.php
@@ -1,10 +1,8 @@
 <?php
 namespace wcf\acp\form;
 use wcf\data\option\category\OptionCategory;
-use wcf\data\option\Option;
 use wcf\data\option\OptionAction;
 use wcf\system\exception\IllegalLinkException;
-use wcf\system\language\I18nHandler;
 use wcf\system\menu\acp\ACPMenu;
 use wcf\system\WCF;
 use wcf\system\WCFACP;
diff --git a/wcfsetup/install/files/lib/acp/form/UserAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserAddForm.class.php
index ee85a232a8..ddcfe3db98 100644
--- a/wcfsetup/install/files/lib/acp/form/UserAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserAddForm.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\acp\form;
-use wcf\data\option\Option;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\UserAction;
 use wcf\form\AbstractForm;
diff --git a/wcfsetup/install/files/lib/acp/form/UserAssignToGroupForm.class.php b/wcfsetup/install/files/lib/acp/form/UserAssignToGroupForm.class.php
index aa8a09471a..62d3bf25cb 100755
--- a/wcfsetup/install/files/lib/acp/form/UserAssignToGroupForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserAssignToGroupForm.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\acp\form;
 use wcf\data\user\group\UserGroup;
-use wcf\data\user\User;
 use wcf\data\user\UserEditor;
 use wcf\system\clipboard\ClipboardHandler;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/acp/form/UserEmailAddressExportForm.class.php b/wcfsetup/install/files/lib/acp/form/UserEmailAddressExportForm.class.php
index 4a6c52fce3..e3d2992c0b 100755
--- a/wcfsetup/install/files/lib/acp/form/UserEmailAddressExportForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserEmailAddressExportForm.class.php
@@ -1,12 +1,10 @@
 <?php
 namespace wcf\acp\form;
-use wcf\data\user\User;
 use wcf\system\clipboard\ClipboardHandler;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\exception\SystemException;
 use wcf\system\WCF;
-use wcf\util\ArrayUtil;
 use wcf\util\StringUtil;
 
 /**
diff --git a/wcfsetup/install/files/lib/acp/form/UserGroupAddForm.class.php b/wcfsetup/install/files/lib/acp/form/UserGroupAddForm.class.php
index 36e1e5dcc2..7c830331a9 100755
--- a/wcfsetup/install/files/lib/acp/form/UserGroupAddForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserGroupAddForm.class.php
@@ -3,14 +3,11 @@ namespace wcf\acp\form;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\group\UserGroupAction;
 use wcf\data\user\group\UserGroupEditor;
-use wcf\system\exception\SystemException;
 use wcf\system\exception\UserInputException;
 use wcf\system\language\I18nHandler;
 use wcf\system\menu\acp\ACPMenu;
 use wcf\system\WCF;
 use wcf\system\WCFACP;
-use wcf\util\ClassUtil;
-use wcf\util\StringUtil;
 
 /**
  * Shows the group add form.
diff --git a/wcfsetup/install/files/lib/acp/form/UserGroupEditForm.class.php b/wcfsetup/install/files/lib/acp/form/UserGroupEditForm.class.php
index ef3fff415e..28acbcaa75 100755
--- a/wcfsetup/install/files/lib/acp/form/UserGroupEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserGroupEditForm.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\acp\form;
-use wcf\data\acp\session\ACPSession;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\group\UserGroupAction;
 use wcf\data\user\group\UserGroupEditor;
diff --git a/wcfsetup/install/files/lib/acp/form/UserOptionListForm.class.php b/wcfsetup/install/files/lib/acp/form/UserOptionListForm.class.php
index 3ddbcb2620..fff5286904 100644
--- a/wcfsetup/install/files/lib/acp/form/UserOptionListForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserOptionListForm.class.php
@@ -1,11 +1,7 @@
 <?php
 namespace wcf\acp\form;
-use wcf\data\option\Option;
 use wcf\data\user\group\UserGroup;
-use wcf\system\exception\UserInputException;
 use wcf\system\language\LanguageFactory;
-use wcf\system\WCF;
-use wcf\util\StringUtil;
 
 /**
  * This class provides default implementations for a list of dynamic user options.
diff --git a/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php b/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
index fa05d08f4e..1caff90f34 100755
--- a/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\acp\form;
-use wcf\data\option\Option;
 use wcf\data\search\SearchEditor;
 use wcf\form\AbstractForm;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
diff --git a/wcfsetup/install/files/lib/acp/form/UsersMassProcessingForm.class.php b/wcfsetup/install/files/lib/acp/form/UsersMassProcessingForm.class.php
index c32312905b..65dc48d5cc 100644
--- a/wcfsetup/install/files/lib/acp/form/UsersMassProcessingForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UsersMassProcessingForm.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\acp\form;
-use wcf\data\option\Option;
 use wcf\data\user\group\UserGroup;
 use wcf\data\user\User;
 use wcf\data\user\UserEditor;
diff --git a/wcfsetup/install/files/lib/acp/page/ACPSessionLogListPage.class.php b/wcfsetup/install/files/lib/acp/page/ACPSessionLogListPage.class.php
index ef3cb83fd4..eb540f3793 100755
--- a/wcfsetup/install/files/lib/acp/page/ACPSessionLogListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ACPSessionLogListPage.class.php
@@ -2,7 +2,6 @@
 namespace wcf\acp\page;
 use wcf\page\SortablePage;
 use wcf\system\menu\acp\ACPMenu;
-use wcf\system\WCF;
 
 /**
  * Shows a list of log sessions.
diff --git a/wcfsetup/install/files/lib/acp/page/CronjobListPage.class.php b/wcfsetup/install/files/lib/acp/page/CronjobListPage.class.php
index bba9d534c7..2a2a49d054 100755
--- a/wcfsetup/install/files/lib/acp/page/CronjobListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/CronjobListPage.class.php
@@ -3,7 +3,6 @@ namespace wcf\acp\page;
 use wcf\page\SortablePage;
 use wcf\system\menu\acp\ACPMenu;
 use wcf\system\package\PackageDependencyHandler;
-use wcf\system\WCF;
 
 /**
  * Shows information about configured cron jobs.
diff --git a/wcfsetup/install/files/lib/acp/page/CronjobLogListPage.class.php b/wcfsetup/install/files/lib/acp/page/CronjobLogListPage.class.php
index 9ee4caff24..f47458be5d 100755
--- a/wcfsetup/install/files/lib/acp/page/CronjobLogListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/CronjobLogListPage.class.php
@@ -3,7 +3,6 @@ namespace wcf\acp\page;
 use wcf\page\SortablePage;
 use wcf\system\menu\acp\ACPMenu;
 use wcf\system\package\PackageDependencyHandler;
-use wcf\system\WCF;
 
 /**
  * Shows cronjob log information.
diff --git a/wcfsetup/install/files/lib/acp/page/IndexPage.class.php b/wcfsetup/install/files/lib/acp/page/IndexPage.class.php
index f9588cf186..0f47d7ea64 100755
--- a/wcfsetup/install/files/lib/acp/page/IndexPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/IndexPage.class.php
@@ -9,7 +9,6 @@ use wcf\system\language\LanguageFactory;
 use wcf\system\package\PackageInstallationDispatcher;
 use wcf\system\WCF;
 use wcf\system\WCFACP;
-use wcf\util\ClassUtil;
 
 /**
  * Shows the welcome page in admin control panel.
diff --git a/wcfsetup/install/files/lib/acp/page/PackageListDetailedPage.class.php b/wcfsetup/install/files/lib/acp/page/PackageListDetailedPage.class.php
index 6288be5e47..002546a956 100644
--- a/wcfsetup/install/files/lib/acp/page/PackageListDetailedPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PackageListDetailedPage.class.php
@@ -2,7 +2,6 @@
 namespace wcf\acp\page;
 use wcf\page\SortablePage;
 use wcf\system\menu\acp\ACPMenu;
-use wcf\system\WCF;
 
 /**
  * Shows a list of all installed packages.
diff --git a/wcfsetup/install/files/lib/acp/page/PackagePage.class.php b/wcfsetup/install/files/lib/acp/page/PackagePage.class.php
index 684e505325..1d0c1a9123 100755
--- a/wcfsetup/install/files/lib/acp/page/PackagePage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/PackagePage.class.php
@@ -2,7 +2,6 @@
 namespace wcf\acp\page;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\page\AbstractPage;
-use wcf\system\exception\IllegalLinkException;
 use wcf\system\package\PackageInstallationDispatcher;
 use wcf\system\package\PackageUninstallationDispatcher;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/acp/page/UserListPage.class.php b/wcfsetup/install/files/lib/acp/page/UserListPage.class.php
index 78ea645aa2..dfa1b8dabb 100755
--- a/wcfsetup/install/files/lib/acp/page/UserListPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/UserListPage.class.php
@@ -9,7 +9,6 @@ use wcf\system\clipboard\ClipboardHandler;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\event\EventHandler;
 use wcf\system\exception\IllegalLinkException;
-use wcf\system\exception\SystemException;
 use wcf\system\menu\acp\ACPMenu;
 use wcf\system\request\LinkHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php b/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
index e59e7fc360..8163a7091c 100644
--- a/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
+++ b/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
@@ -1,15 +1,12 @@
 <?php
 namespace wcf\action;
 use wcf\system\exception\IllegalLinkException;
-
-use wcf\system\WCF;
-
-use wcf\system\exception\PermissionDeniedException;
-
 use wcf\system\exception\AJAXException;
+use wcf\system\exception\PermissionDeniedException;
 use wcf\system\exception\SystemException;
 use wcf\system\exception\UserInputException;
 use wcf\system\exception\ValidateActionException;
+use wcf\system\WCF;
 use wcf\util\ArrayUtil;
 use wcf\util\ClassUtil;
 use wcf\util\JSON;
diff --git a/wcfsetup/install/files/lib/data/DatabaseObjectDecorator.class.php b/wcfsetup/install/files/lib/data/DatabaseObjectDecorator.class.php
index 01d4a7e131..03eb97a71d 100644
--- a/wcfsetup/install/files/lib/data/DatabaseObjectDecorator.class.php
+++ b/wcfsetup/install/files/lib/data/DatabaseObjectDecorator.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\data;
 use wcf\system\exception\SystemException;
-use wcf\system\WCF;
 
 /**
  * Basic implementation for object decorators.
diff --git a/wcfsetup/install/files/lib/data/acp/session/ACPSession.class.php b/wcfsetup/install/files/lib/data/acp/session/ACPSession.class.php
index 9c95a8b41b..ba27a8d637 100644
--- a/wcfsetup/install/files/lib/data/acp/session/ACPSession.class.php
+++ b/wcfsetup/install/files/lib/data/acp/session/ACPSession.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\data\acp\session;
 use wcf\data\DatabaseObject;
-use wcf\system\WCF;
 
 /**
  * Represents an ACP session.
diff --git a/wcfsetup/install/files/lib/data/acp/template/ACPTemplateAction.class.php b/wcfsetup/install/files/lib/data/acp/template/ACPTemplateAction.class.php
index 8dbf4f1138..57a4bbe295 100644
--- a/wcfsetup/install/files/lib/data/acp/template/ACPTemplateAction.class.php
+++ b/wcfsetup/install/files/lib/data/acp/template/ACPTemplateAction.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\data\acp\template;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\ValidateActionException;
-use wcf\system\WCF;
 
 /**
  * Executes ACP templates-related actions.
diff --git a/wcfsetup/install/files/lib/data/cronjob/CronjobEditor.class.php b/wcfsetup/install/files/lib/data/cronjob/CronjobEditor.class.php
index b976c213c4..50ebe45f8d 100644
--- a/wcfsetup/install/files/lib/data/cronjob/CronjobEditor.class.php
+++ b/wcfsetup/install/files/lib/data/cronjob/CronjobEditor.class.php
@@ -3,7 +3,6 @@ namespace wcf\data\cronjob;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
 use wcf\system\cache\CacheHandler;
-use wcf\system\WCF;
 
 /**
  * Provides functions to edit cronjobs.
diff --git a/wcfsetup/install/files/lib/data/language/category/LanguageCategoryAction.class.php b/wcfsetup/install/files/lib/data/language/category/LanguageCategoryAction.class.php
index e14299bbe3..9cdb2dd9ef 100644
--- a/wcfsetup/install/files/lib/data/language/category/LanguageCategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/language/category/LanguageCategoryAction.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\data\language\category;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\ValidateActionException;
-use wcf\system\WCF;
 
 /**
  * Executes language category-related actions.
diff --git a/wcfsetup/install/files/lib/data/language/item/LanguageItemAction.class.php b/wcfsetup/install/files/lib/data/language/item/LanguageItemAction.class.php
index 1db88232c1..575e63effe 100644
--- a/wcfsetup/install/files/lib/data/language/item/LanguageItemAction.class.php
+++ b/wcfsetup/install/files/lib/data/language/item/LanguageItemAction.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\data\language\item;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\ValidateActionException;
-use wcf\system\WCF;
 
 /**
  * Executes language item-related actions.
diff --git a/wcfsetup/install/files/lib/data/option/OptionAction.class.php b/wcfsetup/install/files/lib/data/option/OptionAction.class.php
index e53e2171e3..f0a3eb67bd 100644
--- a/wcfsetup/install/files/lib/data/option/OptionAction.class.php
+++ b/wcfsetup/install/files/lib/data/option/OptionAction.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\data\option;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\ValidateActionException;
-use wcf\system\WCF;
 
 /**
  * Executes option-related actions.
diff --git a/wcfsetup/install/files/lib/data/option/category/OptionCategoryAction.class.php b/wcfsetup/install/files/lib/data/option/category/OptionCategoryAction.class.php
index b45ad62283..82445d1eaf 100644
--- a/wcfsetup/install/files/lib/data/option/category/OptionCategoryAction.class.php
+++ b/wcfsetup/install/files/lib/data/option/category/OptionCategoryAction.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\data\option\category;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\ValidateActionException;
-use wcf\system\WCF;
 
 /**
  * Executes option categories-related actions.
diff --git a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPlugin.class.php
index 2ca8f08efe..a8d06f5745 100644
--- a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPlugin.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\data\package\installation\plugin;
 use wcf\data\DatabaseObject;
-use wcf\system\WCF;
 
 /**
  * Represents a package installation plugin.
diff --git a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginEditor.class.php b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginEditor.class.php
index fe4b16add8..32fff58edc 100644
--- a/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginEditor.class.php
+++ b/wcfsetup/install/files/lib/data/package/installation/plugin/PackageInstallationPluginEditor.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\data\package\installation\plugin;
 use wcf\data\DatabaseObjectEditor;
-use wcf\system\WCF;
 
 /**
  * Provides functions to edit package installation plugins.
diff --git a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServer.class.php b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServer.class.php
index 547392b3b6..50bddfa5b3 100644
--- a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServer.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServer.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\data\package\update\server;
 use wcf\data\DatabaseObject;
-use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\WCF;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerAction.class.php b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerAction.class.php
index cac5fa6a94..b45b82a689 100644
--- a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerAction.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerAction.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\data\package\update\server;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\ValidateActionException;
-use wcf\system\WCF;
 
 /**
  * Executes package update server-related actions.
diff --git a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerEditor.class.php b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerEditor.class.php
index 08af351688..a796d5b90b 100644
--- a/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerEditor.class.php
+++ b/wcfsetup/install/files/lib/data/package/update/server/PackageUpdateServerEditor.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\data\package\update\server;
 use wcf\data\DatabaseObjectEditor;
-use wcf\system\WCF;
 
 /**
  * Contains business logic related to handling of package update servers.
diff --git a/wcfsetup/install/files/lib/data/sitemap/SitemapAction.class.php b/wcfsetup/install/files/lib/data/sitemap/SitemapAction.class.php
index 929675faea..4fc9c67dc9 100644
--- a/wcfsetup/install/files/lib/data/sitemap/SitemapAction.class.php
+++ b/wcfsetup/install/files/lib/data/sitemap/SitemapAction.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\data\sitemap;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\SystemException;
 use wcf\system\sitemap\SitemapHandler;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/data/style/ActiveStyle.class.php b/wcfsetup/install/files/lib/data/style/ActiveStyle.class.php
index d1f16e093d..fd2fd6956b 100644
--- a/wcfsetup/install/files/lib/data/style/ActiveStyle.class.php
+++ b/wcfsetup/install/files/lib/data/style/ActiveStyle.class.php
@@ -2,10 +2,8 @@
 namespace wcf\data\style;
 use wcf\data\DatabaseObjectDecorator;
 use wcf\system\cache\CacheHandler;
-use wcf\system\WCF;
 use wcf\util\FileUtil;
 use wcf\util\StringUtil;
-use wcf\util\StyleUtil;
 
 /**
  * Represents the active user style.
diff --git a/wcfsetup/install/files/lib/data/template/TemplateAction.class.php b/wcfsetup/install/files/lib/data/template/TemplateAction.class.php
index 6e345cb4ce..ebf056c1af 100644
--- a/wcfsetup/install/files/lib/data/template/TemplateAction.class.php
+++ b/wcfsetup/install/files/lib/data/template/TemplateAction.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\data\template;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\ValidateActionException;
-use wcf\system\WCF;
 
 /**
  * Executes template-related actions.
diff --git a/wcfsetup/install/files/lib/data/template/group/TemplateGroupAction.class.php b/wcfsetup/install/files/lib/data/template/group/TemplateGroupAction.class.php
index c0cc9ccfed..33137f3353 100644
--- a/wcfsetup/install/files/lib/data/template/group/TemplateGroupAction.class.php
+++ b/wcfsetup/install/files/lib/data/template/group/TemplateGroupAction.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\data\template\group;
 use wcf\data\AbstractDatabaseObjectAction;
-use wcf\system\exception\ValidateActionException;
-use wcf\system\WCF;
 
 /**
  * Executes template group-related actions.
diff --git a/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php b/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php
index 6edf697d4d..1bb59c455a 100644
--- a/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\data\user\group;
-use wcf\data\acp\session\ACPSession;
 use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
 use wcf\system\cache\CacheHandler;
diff --git a/wcfsetup/install/files/lib/system/WCF.class.php b/wcfsetup/install/files/lib/system/WCF.class.php
index 86049bc132..b4ed98392d 100644
--- a/wcfsetup/install/files/lib/system/WCF.class.php
+++ b/wcfsetup/install/files/lib/system/WCF.class.php
@@ -1,12 +1,10 @@
 <?php
 namespace wcf\system;
 use wcf\data\application\Application;
-use wcf\data\package\Package;
 use wcf\data\package\PackageCache;
 use wcf\system\application\ApplicationHandler;
 use wcf\system\cache\CacheHandler;
 use wcf\system\cronjob\CronjobScheduler;
-use wcf\system\database\statement\PreparedStatement;
 use wcf\system\language\LanguageFactory;
 use wcf\system\package\PackageInstallationDispatcher;
 use wcf\system\session\SessionFactory;
@@ -14,7 +12,6 @@ use wcf\system\session\SessionHandler;
 use wcf\system\template\TemplateEngine;
 use wcf\system\user\storage\UserStorageHandler;
 use wcf\system\exception;
-use wcf\util\StringStack;
 use wcf\util;
 
 // try to disable execution time limit
diff --git a/wcfsetup/install/files/lib/system/application/AbstractApplication.class.php b/wcfsetup/install/files/lib/system/application/AbstractApplication.class.php
index 39ab8510fd..c7a21eb7e3 100644
--- a/wcfsetup/install/files/lib/system/application/AbstractApplication.class.php
+++ b/wcfsetup/install/files/lib/system/application/AbstractApplication.class.php
@@ -1,7 +1,5 @@
 <?php
 namespace wcf\system\application;
-use wcf\system\cache\CacheHandler;
-use wcf\system\WCF;
 
 /**
  * Default implementation for all applications for the community framework.
diff --git a/wcfsetup/install/files/lib/system/cache/CacheHandler.class.php b/wcfsetup/install/files/lib/system/cache/CacheHandler.class.php
index 4cba243a56..ae1914e190 100644
--- a/wcfsetup/install/files/lib/system/cache/CacheHandler.class.php
+++ b/wcfsetup/install/files/lib/system/cache/CacheHandler.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\cache;
 use wcf\system\exception\SystemException;
 use wcf\system\SingletonFactory;
-use wcf\util\StringUtil;
 
 /**
  * CacheHandler holds all registered cache resources.
diff --git a/wcfsetup/install/files/lib/system/cache/builder/CategoryCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/CategoryCacheBuilder.class.php
index 6b7cd3d572..ac694e34df 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/CategoryCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/CategoryCacheBuilder.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\cache\builder;
 use wcf\data\category\CategoryList;
-use wcf\system\package\PackageDependencyHandler;
 
 /**
  * Caches the categories for a certain package.
diff --git a/wcfsetup/install/files/lib/system/cache/builder/EventListenerCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/EventListenerCacheBuilder.class.php
index b7d5bef013..92bc42407c 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/EventListenerCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/EventListenerCacheBuilder.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\cache\builder;
 use wcf\system\event\EventHandler;
 use wcf\system\WCF;
-use wcf\util\StringUtil;
 
 /**
  * Caches the event listeners.
diff --git a/wcfsetup/install/files/lib/system/cache/builder/OptionCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/OptionCacheBuilder.class.php
index 66192d0f75..2e2db2f837 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/OptionCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/OptionCacheBuilder.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\cache\builder;
 use wcf\data\option\category\OptionCategory;
-use wcf\data\option\Option;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/cache/builder/PackageCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/PackageCacheBuilder.class.php
index d7fdae39cb..c9b083b42d 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/PackageCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/PackageCacheBuilder.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\cache\builder;
 use wcf\data\package\PackageList;
-use wcf\system\WCF;
 
 /**
  * Caches all registered packages.
diff --git a/wcfsetup/install/files/lib/system/category/CategoryHandler.class.php b/wcfsetup/install/files/lib/system/category/CategoryHandler.class.php
index 5a70e8c78d..be66a854df 100644
--- a/wcfsetup/install/files/lib/system/category/CategoryHandler.class.php
+++ b/wcfsetup/install/files/lib/system/category/CategoryHandler.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\category;
 use wcf\data\category\Category;
-use wcf\data\category\CategoryEditor;
 use wcf\system\SingletonFactory;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\cache\CacheHandler;
diff --git a/wcfsetup/install/files/lib/system/clipboard/ClipboardEditorItem.class.php b/wcfsetup/install/files/lib/system/clipboard/ClipboardEditorItem.class.php
index 46eaefbcd1..729128c7d1 100644
--- a/wcfsetup/install/files/lib/system/clipboard/ClipboardEditorItem.class.php
+++ b/wcfsetup/install/files/lib/system/clipboard/ClipboardEditorItem.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\clipboard;
 use wcf\system\exception\SystemException;
-use wcf\util\StringUtil;
 
 /**
  * Represents a clipboard item for inline editing.
diff --git a/wcfsetup/install/files/lib/system/cronjob/SessionCleanUpCronjob.class.php b/wcfsetup/install/files/lib/system/cronjob/SessionCleanUpCronjob.class.php
index c59052ecea..a74c3610f8 100644
--- a/wcfsetup/install/files/lib/system/cronjob/SessionCleanUpCronjob.class.php
+++ b/wcfsetup/install/files/lib/system/cronjob/SessionCleanUpCronjob.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\cronjob;
 use wcf\data\acp\session\ACPSessionEditor;
 use wcf\data\cronjob\Cronjob;
 use wcf\data\session\SessionEditor;
-use wcf\system\WCF;
 
 /**
  * Deletes expired sesions.
diff --git a/wcfsetup/install/files/lib/system/database/Database.class.php b/wcfsetup/install/files/lib/system/database/Database.class.php
index 7d77deafcd..43da28d1ae 100644
--- a/wcfsetup/install/files/lib/system/database/Database.class.php
+++ b/wcfsetup/install/files/lib/system/database/Database.class.php
@@ -1,8 +1,5 @@
 <?php
 namespace wcf\system\database;
-use wcf\data\DatabaseObject;
-use wcf\system\database\statement\PreparedStatement;
-
 
 /**
  * This is an abstract implementation of a database access class using PDO.
diff --git a/wcfsetup/install/files/lib/system/database/MySQLDatabase.class.php b/wcfsetup/install/files/lib/system/database/MySQLDatabase.class.php
index 8213b6fb61..a34932d0c1 100644
--- a/wcfsetup/install/files/lib/system/database/MySQLDatabase.class.php
+++ b/wcfsetup/install/files/lib/system/database/MySQLDatabase.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\database;
-use wcf\system\database\editor\MySQLDatabaseEditor;
 
 /**
  * This is the database implementation for MySQL4.1 or higher using PDO.
diff --git a/wcfsetup/install/files/lib/system/database/PostgreSQLDatabase.class.php b/wcfsetup/install/files/lib/system/database/PostgreSQLDatabase.class.php
index d3569366ba..0af0f8f0be 100644
--- a/wcfsetup/install/files/lib/system/database/PostgreSQLDatabase.class.php
+++ b/wcfsetup/install/files/lib/system/database/PostgreSQLDatabase.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\database;
-use wcf\system\database\editor\PostgreSQLDatabaseEditor;
 use wcf\util\StringStack;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/database/editor/MySQLDatabaseEditor.class.php b/wcfsetup/install/files/lib/system/database/editor/MySQLDatabaseEditor.class.php
index 8412c657e4..41cb6b4e5d 100644
--- a/wcfsetup/install/files/lib/system/database/editor/MySQLDatabaseEditor.class.php
+++ b/wcfsetup/install/files/lib/system/database/editor/MySQLDatabaseEditor.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\database\editor;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
-use wcf\system\database\Database;
 
 /**
  * This is the database editor implementation for MySQL4.1 or higher.
diff --git a/wcfsetup/install/files/lib/system/database/statement/PreparedStatement.class.php b/wcfsetup/install/files/lib/system/database/statement/PreparedStatement.class.php
index 13be986ea6..c068d9840a 100644
--- a/wcfsetup/install/files/lib/system/database/statement/PreparedStatement.class.php
+++ b/wcfsetup/install/files/lib/system/database/statement/PreparedStatement.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\database\statement;
-use wcf\data\DatabaseObject;
 use wcf\system\benchmark\Benchmark;
 use wcf\system\database\Database;
 use wcf\system\database\DatabaseException;
diff --git a/wcfsetup/install/files/lib/system/form/element/MultipleSelectionFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/MultipleSelectionFormElement.class.php
index 31f0d65d10..ed7c4da65e 100644
--- a/wcfsetup/install/files/lib/system/form/element/MultipleSelectionFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/MultipleSelectionFormElement.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\form\element;
-use wcf\system\exception\SystemException;
 
 /**
  * Provides a checkbox form element.
diff --git a/wcfsetup/install/files/lib/system/form/element/PasswordInputFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/PasswordInputFormElement.class.php
index 8ffaa8d388..2fd0f314b9 100644
--- a/wcfsetup/install/files/lib/system/form/element/PasswordInputFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/PasswordInputFormElement.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\form\element;
-use wcf\util\StringUtil;
 
 /**
  * Provides a password input form element.
diff --git a/wcfsetup/install/files/lib/system/form/element/TextInputFormElement.class.php b/wcfsetup/install/files/lib/system/form/element/TextInputFormElement.class.php
index 9f9441d760..2f171a1a78 100644
--- a/wcfsetup/install/files/lib/system/form/element/TextInputFormElement.class.php
+++ b/wcfsetup/install/files/lib/system/form/element/TextInputFormElement.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\form\element;
-use wcf\util\StringUtil;
 
 /**
  * Provides a text input form element.
diff --git a/wcfsetup/install/files/lib/system/language/LanguageFactory.class.php b/wcfsetup/install/files/lib/system/language/LanguageFactory.class.php
index aa1053f607..13ec864442 100644
--- a/wcfsetup/install/files/lib/system/language/LanguageFactory.class.php
+++ b/wcfsetup/install/files/lib/system/language/LanguageFactory.class.php
@@ -7,7 +7,6 @@ use wcf\system\cache\CacheHandler;
 use wcf\system\template\TemplateScriptingCompiler;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
-use wcf\util\StringUtil;
 
 /**
  * Handles language related functions.
diff --git a/wcfsetup/install/files/lib/system/language/LanguageServerProcessor.class.php b/wcfsetup/install/files/lib/system/language/LanguageServerProcessor.class.php
index 1b7957628c..969db550cd 100644
--- a/wcfsetup/install/files/lib/system/language/LanguageServerProcessor.class.php
+++ b/wcfsetup/install/files/lib/system/language/LanguageServerProcessor.class.php
@@ -6,7 +6,6 @@ use wcf\system\exception\SystemException;
 use wcf\system\io\RemoteFile;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
-use wcf\util\FileUtil;
 use wcf\util\XML;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/menu/TreeMenu.class.php b/wcfsetup/install/files/lib/system/menu/TreeMenu.class.php
index 1bf0889faf..8240270c7d 100644
--- a/wcfsetup/install/files/lib/system/menu/TreeMenu.class.php
+++ b/wcfsetup/install/files/lib/system/menu/TreeMenu.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\menu;
 use wcf\system\event\EventHandler;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
-use wcf\util\FileUtil;
 
 /**
  * Basis class for a tree menu.
diff --git a/wcfsetup/install/files/lib/system/menu/page/PageMenu.class.php b/wcfsetup/install/files/lib/system/menu/page/PageMenu.class.php
index 89ea80b854..46e2c70a88 100644
--- a/wcfsetup/install/files/lib/system/menu/page/PageMenu.class.php
+++ b/wcfsetup/install/files/lib/system/menu/page/PageMenu.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\menu\page;
-use wcf\data\page\menu\item\PageMenuItem;
 use wcf\system\cache\CacheHandler;
 use wcf\system\event\EventHandler;
 use wcf\system\menu\ITreeMenuItem;
diff --git a/wcfsetup/install/files/lib/system/option/BooleanOptionType.class.php b/wcfsetup/install/files/lib/system/option/BooleanOptionType.class.php
index a1b6fbf63c..1dd3448837 100644
--- a/wcfsetup/install/files/lib/system/option/BooleanOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/BooleanOptionType.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\WCF;
-use wcf\util\StringUtil;
 
 /**
  * BooleanOptionType is an implementation of IOptionType for boolean values.
diff --git a/wcfsetup/install/files/lib/system/option/DateOptionType.class.php b/wcfsetup/install/files/lib/system/option/DateOptionType.class.php
index dffe972f2b..7fd359cdfd 100644
--- a/wcfsetup/install/files/lib/system/option/DateOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/DateOptionType.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\option;
 use wcf\data\option\Option;
-use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\UserInputException;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/option/OptionHandler.class.php b/wcfsetup/install/files/lib/system/option/OptionHandler.class.php
index a8b725b341..2429ff8ef9 100644
--- a/wcfsetup/install/files/lib/system/option/OptionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/option/OptionHandler.class.php
@@ -8,7 +8,6 @@ use wcf\system\exception\UserInputException;
 use wcf\system\language\I18nHandler;
 use wcf\system\WCF;
 use wcf\util\ClassUtil;
-use wcf\util\StringUtil;
 
 /**
  * Handles options.
diff --git a/wcfsetup/install/files/lib/system/package/PackageArchive.class.php b/wcfsetup/install/files/lib/system/package/PackageArchive.class.php
index e8f36593c8..ee93a50e7b 100644
--- a/wcfsetup/install/files/lib/system/package/PackageArchive.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageArchive.class.php
@@ -6,7 +6,6 @@ use wcf\system\exception\SystemException;
 use wcf\system\io\Tar;
 use wcf\system\WCF;
 use wcf\util\FileUtil;
-use wcf\util\StringUtil;
 use wcf\util\XML;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/package/PackageInstallationNodeBuilder.class.php b/wcfsetup/install/files/lib/system/package/PackageInstallationNodeBuilder.class.php
index ef3bafe78f..aa465e5860 100644
--- a/wcfsetup/install/files/lib/system/package/PackageInstallationNodeBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageInstallationNodeBuilder.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\package;
-use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\data\package\installation\queue\PackageInstallationQueueEditor;
 use wcf\data\package\installation\queue\PackageInstallationQueueList;
 use wcf\system\exception\SystemException;
diff --git a/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php b/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
index 7831e55c5d..a082f38474 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUninstallationDispatcher.class.php
@@ -2,14 +2,12 @@
 namespace wcf\system\package;
 use wcf\data\option\OptionEditor;
 use wcf\data\package\installation\queue\PackageInstallationQueue;
-use wcf\data\package\installation\queue\PackageInstallationQueueEditor;
 use wcf\data\package\Package;
 use wcf\data\package\PackageEditor;
 use wcf\data\package\PackageList;
 use wcf\system\cache\CacheHandler;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\exception\SystemException;
-use wcf\system\menu\acp\ACPMenu;
 use wcf\system\request\LinkHandler;
 use wcf\system\setup\Uninstaller;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php b/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
index ffb8ed1ffa..52618f4c0e 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
@@ -11,7 +11,6 @@ use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\SystemException;
 use wcf\system\io\RemoteFile;
 use wcf\system\WCF;
-use wcf\util\StringUtil;
 use wcf\util\XML;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/package/plugin/ACPTemplatePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/ACPTemplatePackageInstallationPlugin.class.php
index dd0e9b964a..e1431273e1 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/ACPTemplatePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/ACPTemplatePackageInstallationPlugin.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\package\plugin;
 use wcf\system\exception\SystemException;
-use wcf\system\io\Tar;
 use wcf\system\package\ACPTemplatesFileHandler;
 use wcf\system\WCF;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/FilePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/FilePackageInstallationPlugin.class.php
index 6bfe152d14..fa4499c2d4 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/FilePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/FilePackageInstallationPlugin.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\package\plugin;
 use wcf\data\package\Package;
 use wcf\data\package\PackageEditor;
-use wcf\system\exception\SystemException;
 use wcf\system\package\FilesFileHandler;
 use wcf\system\package\PackageInstallationDispatcher;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/package/plugin/PIPPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/PIPPackageInstallationPlugin.class.php
index 37ddd41835..6aaca229eb 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/PIPPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/PIPPackageInstallationPlugin.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\package\plugin;
-use wcf\system\exception\SystemException;
 use wcf\system\WCF;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/package/plugin/PageMenuPackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/PageMenuPackageInstallationPlugin.class.php
index 093b6e0a42..5da42436f0 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/PageMenuPackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/PageMenuPackageInstallationPlugin.class.php
@@ -1,7 +1,5 @@
 <?php
 namespace wcf\system\package\plugin;
-use wcf\system\exception\SystemException;
-use wcf\util\ClassUtil;
 
 /**
  * This PIP installs, updates or deletes page page menu items.
diff --git a/wcfsetup/install/files/lib/system/package/plugin/StylePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/StylePackageInstallationPlugin.class.php
index 34cc471323..bf9803bf12 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/StylePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/StylePackageInstallationPlugin.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\package\plugin;
 use wcf\data\style\StyleEditor;
 use wcf\data\style\StyleList;
 use wcf\system\event\EventHandler;
-use wcf\system\WCF;
 
 /**
  * This PIP installs, updates or deletes styles.
diff --git a/wcfsetup/install/files/lib/system/package/plugin/TemplatePackageInstallationPlugin.class.php b/wcfsetup/install/files/lib/system/package/plugin/TemplatePackageInstallationPlugin.class.php
index 61693f3263..981200ef3e 100644
--- a/wcfsetup/install/files/lib/system/package/plugin/TemplatePackageInstallationPlugin.class.php
+++ b/wcfsetup/install/files/lib/system/package/plugin/TemplatePackageInstallationPlugin.class.php
@@ -1,7 +1,5 @@
 <?php
 namespace wcf\system\package\plugin;
-use wcf\system\exception\SystemException;
-use wcf\system\io\Tar;
 use wcf\system\package\TemplatesFileHandler;
 use wcf\system\WCF;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/session/SessionHandler.class.php b/wcfsetup/install/files/lib/system/session/SessionHandler.class.php
index 4ba79d24bc..776e99339f 100644
--- a/wcfsetup/install/files/lib/system/session/SessionHandler.class.php
+++ b/wcfsetup/install/files/lib/system/session/SessionHandler.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\session;
-use wcf\data\user\group\UserGroup;
 use wcf\data\user\User;
 use wcf\system\cache\CacheHandler;
 use wcf\system\exception\PermissionDeniedException;
diff --git a/wcfsetup/install/files/lib/system/template/plugin/HtmlOptionsFunctionTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/HtmlOptionsFunctionTemplatePlugin.class.php
index 73db745e8b..016012acfb 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/HtmlOptionsFunctionTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/HtmlOptionsFunctionTemplatePlugin.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\template\plugin;
 use wcf\data\DatabaseObjectList;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateEngine;
-use wcf\util\StringUtil;
 
 /**
  * The 'htmlOptions' template function generates the options of an html select list.
diff --git a/wcfsetup/install/files/lib/system/template/plugin/IconCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/IconCompilerTemplatePlugin.class.php
index 53ef754ad6..f05207438a 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/IconCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/IconCompilerTemplatePlugin.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
-use wcf\util\StringUtil;
 
 /**
  * The 'icon' compiler function compiles dynamic icon paths.
diff --git a/wcfsetup/install/files/lib/system/template/plugin/LangCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/LangCompilerTemplatePlugin.class.php
index d86911ca6b..7b9d9ad3ec 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/LangCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/LangCompilerTemplatePlugin.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
-use wcf\util\StringUtil;
 
 /**
  * The 'lang' compiler function compiles dynamic language variables.
diff --git a/wcfsetup/install/files/lib/system/template/plugin/PrependCompilerTemplatePlugin.class.php b/wcfsetup/install/files/lib/system/template/plugin/PrependCompilerTemplatePlugin.class.php
index 3738a7b9cf..804c861b52 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/PrependCompilerTemplatePlugin.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/PrependCompilerTemplatePlugin.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\template\plugin;
 use wcf\system\exception\SystemException;
 use wcf\system\template\TemplateScriptingCompiler;
-use wcf\util\StringUtil;
 
 /**
  * The 'prepend' compiler function calls the prepend function on the template object.
diff --git a/wcfsetup/install/files/lib/system/template/plugin/StaticlangTemplatePluginCompiler.class.php b/wcfsetup/install/files/lib/system/template/plugin/StaticlangTemplatePluginCompiler.class.php
index 973ba66972..86f9b9292e 100644
--- a/wcfsetup/install/files/lib/system/template/plugin/StaticlangTemplatePluginCompiler.class.php
+++ b/wcfsetup/install/files/lib/system/template/plugin/StaticlangTemplatePluginCompiler.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\template\plugin;
 use wcf\system\template\TemplateScriptingCompiler;
-use wcf\util\StringUtil;
 
 /**
  * The 'staticlang' compiler function gets the source of a language variables.
-- 
2.20.1