From 013d21a83649e7a9c36aaaf8f4b96ae529c6c0e1 Mon Sep 17 00:00:00 2001
From: Matthias Schmidt <gravatronics@live.com>
Date: Fri, 25 Mar 2016 16:55:55 +0100
Subject: [PATCH] Remove unused/redundant imports

---
 .../files/lib/acp/form/PackageStartInstallForm.class.php       | 3 ---
 .../install/files/lib/acp/form/TemplateGroupEditForm.class.php | 1 -
 wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php   | 1 -
 .../install/files/lib/acp/page/ExceptionLogViewPage.class.php  | 1 -
 wcfsetup/install/files/lib/action/AJAXProxyAction.class.php    | 1 -
 .../install/files/lib/action/PaypalCallbackAction.class.php    | 1 -
 .../files/lib/data/application/ApplicationAction.class.php     | 2 --
 .../files/lib/data/attachment/AttachmentAction.class.php       | 2 --
 wcfsetup/install/files/lib/data/page/Page.class.php            | 1 -
 wcfsetup/install/files/lib/data/sitemap/Sitemap.class.php      | 1 -
 wcfsetup/install/files/lib/data/style/StyleAction.class.php    | 1 -
 wcfsetup/install/files/lib/data/user/User.class.php            | 1 -
 wcfsetup/install/files/lib/data/user/UserAction.class.php      | 1 -
 .../install/files/lib/data/user/UserBirthdayAction.class.php   | 2 --
 .../files/lib/data/user/group/UserGroupEditor.class.php        | 1 -
 .../files/lib/data/user/ignore/UserIgnoreAction.class.php      | 2 --
 wcfsetup/install/files/lib/form/MessageForm.class.php          | 2 +-
 .../system/attachment/AbstractAttachmentObjectType.class.php   | 1 -
 .../lib/system/background/BackgroundQueueHandler.class.php     | 1 -
 .../user/ExportMailAddressUserBulkProcessingAction.class.php   | 1 -
 .../files/lib/system/cache/builder/MenuCacheBuilder.class.php  | 1 -
 .../lib/system/cache/builder/OptionCacheBuilder.class.php      | 1 -
 .../system/cache/builder/UserBirthdayCacheBuilder.class.php    | 1 -
 .../files/lib/system/cache/source/RedisCacheSource.class.php   | 1 -
 .../files/lib/system/category/SmileyCategoryType.class.php     | 1 -
 .../files/lib/system/cli/command/HelpCLICommand.class.php      | 3 ---
 .../lib/system/condition/AbstractTimestampCondition.class.php  | 2 --
 .../files/lib/system/database/DatabaseException.class.php      | 1 -
 .../files/lib/system/email/mime/HtmlTextMimePart.class.php     | 2 --
 .../files/lib/system/email/mime/PlainTextMimePart.class.php    | 2 --
 .../lib/system/email/mime/RecipientAwareTextMimePart.class.php | 1 -
 .../files/lib/system/exception/LoggedException.class.php       | 3 ---
 .../files/lib/system/exception/SystemException.class.php       | 3 ---
 .../install/files/lib/system/language/I18nHandler.class.php    | 1 -
 .../install/files/lib/system/mail/DebugMailSender.class.php    | 1 -
 wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php   | 1 -
 .../lib/system/menu/user/profile/UserProfileMenu.class.php     | 1 -
 .../option/AbstractCategoryMultiSelectOptionType.class.php     | 1 -
 .../files/lib/system/package/PackageUpdateDispatcher.class.php | 1 -
 .../files/lib/system/recaptcha/RecaptchaHandlerV2.class.php    | 1 -
 .../install/files/lib/system/request/ControllerMap.class.php   | 1 -
 .../install/files/lib/system/request/FlexibleRoute.class.php   | 1 -
 .../install/files/lib/system/request/LinkHandler.class.php     | 2 +-
 .../install/files/lib/system/request/RequestHandler.class.php  | 1 -
 .../lib/system/request/route/DynamicRequestRoute.class.php     | 3 ---
 .../install/files/lib/system/style/StyleCompiler.class.php     | 2 +-
 .../lib/system/template/TemplateScriptingCompiler.class.php    | 1 -
 .../lib/system/upload/DefaultUploadFileSaveStrategy.class.php  | 1 -
 .../event/ProfileCommentResponseUserActivityEvent.class.php    | 1 -
 .../activity/event/ProfileCommentUserActivityEvent.class.php   | 1 -
 .../event/UserProfileCommentUserNotificationEvent.class.php    | 2 --
 .../files/lib/system/user/storage/UserStorageHandler.class.php | 1 -
 52 files changed, 3 insertions(+), 70 deletions(-)

diff --git a/wcfsetup/install/files/lib/acp/form/PackageStartInstallForm.class.php b/wcfsetup/install/files/lib/acp/form/PackageStartInstallForm.class.php
index 00b03b085a..2e96317adb 100755
--- a/wcfsetup/install/files/lib/acp/form/PackageStartInstallForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/PackageStartInstallForm.class.php
@@ -4,16 +4,13 @@ use wcf\data\package\installation\queue\PackageInstallationQueue;
 use wcf\data\package\installation\queue\PackageInstallationQueueEditor;
 use wcf\form\AbstractForm;
 use wcf\system\exception\PermissionDeniedException;
-use wcf\system\exception\SystemException;
 use wcf\system\exception\UserInputException;
 use wcf\system\package\validation\PackageValidationException;
 use wcf\system\package\validation\PackageValidationManager;
-use wcf\system\package\PackageArchive;
 use wcf\system\package\PackageInstallationDispatcher;
 use wcf\system\WCF;
 use wcf\system\WCFACP;
 use wcf\util\FileUtil;
-use wcf\util\StringUtil;
 
 /**
  * Shows the package install and update form.
diff --git a/wcfsetup/install/files/lib/acp/form/TemplateGroupEditForm.class.php b/wcfsetup/install/files/lib/acp/form/TemplateGroupEditForm.class.php
index 8dc7b33b4a..ba3d48c2d0 100644
--- a/wcfsetup/install/files/lib/acp/form/TemplateGroupEditForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/TemplateGroupEditForm.class.php
@@ -2,7 +2,6 @@
 namespace wcf\acp\form;
 use wcf\data\template\group\TemplateGroup;
 use wcf\data\template\group\TemplateGroupAction;
-use wcf\data\template\group\TemplateGroupList;
 use wcf\form\AbstractForm;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php b/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
index fe5edc206a..526d6d34bb 100755
--- a/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
+++ b/wcfsetup/install/files/lib/acp/form/UserSearchForm.class.php
@@ -6,7 +6,6 @@ use wcf\data\user\UserList;
 use wcf\form\AbstractForm;
 use wcf\system\event\EventHandler;
 use wcf\system\exception\UserInputException;
-use wcf\system\language\LanguageFactory;
 use wcf\system\request\LinkHandler;
 use wcf\system\WCF;
 use wcf\util\HeaderUtil;
diff --git a/wcfsetup/install/files/lib/acp/page/ExceptionLogViewPage.class.php b/wcfsetup/install/files/lib/acp/page/ExceptionLogViewPage.class.php
index 4a59fa2d57..315cf89120 100644
--- a/wcfsetup/install/files/lib/acp/page/ExceptionLogViewPage.class.php
+++ b/wcfsetup/install/files/lib/acp/page/ExceptionLogViewPage.class.php
@@ -7,7 +7,6 @@ use wcf\system\exception\IllegalLinkException;
 use wcf\system\Regex;
 use wcf\system\WCF;
 use wcf\util\DirectoryUtil;
-use wcf\util\JSON;
 use wcf\util\StringUtil;
 
 /**
diff --git a/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php b/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
index cc5f449343..0d5ebddf11 100644
--- a/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
+++ b/wcfsetup/install/files/lib/action/AJAXProxyAction.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\action;
-use wcf\data\IStorableObject;
 use wcf\system\exception\SystemException;
 use wcf\system\WCF;
 use wcf\util\ArrayUtil;
diff --git a/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php b/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
index f570a71ba8..b2f06bbb42 100644
--- a/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
+++ b/wcfsetup/install/files/lib/action/PaypalCallbackAction.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\action;
-use wcf\action\AbstractAction;
 use wcf\data\object\type\ObjectTypeCache;
 use wcf\system\exception\SystemException;
 use wcf\system\payment\type\IPaymentType;
diff --git a/wcfsetup/install/files/lib/data/application/ApplicationAction.class.php b/wcfsetup/install/files/lib/data/application/ApplicationAction.class.php
index ab20557631..2cd4b711ac 100644
--- a/wcfsetup/install/files/lib/data/application/ApplicationAction.class.php
+++ b/wcfsetup/install/files/lib/data/application/ApplicationAction.class.php
@@ -2,8 +2,6 @@
 namespace wcf\data\application;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\cache\builder\ApplicationCacheBuilder;
-use wcf\system\exception\PermissionDeniedException;
-use wcf\system\exception\UserInputException;
 use wcf\system\language\LanguageFactory;
 use wcf\system\Regex;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/attachment/AttachmentAction.class.php b/wcfsetup/install/files/lib/data/attachment/AttachmentAction.class.php
index 373f61e013..d3d4d67622 100644
--- a/wcfsetup/install/files/lib/data/attachment/AttachmentAction.class.php
+++ b/wcfsetup/install/files/lib/data/attachment/AttachmentAction.class.php
@@ -9,13 +9,11 @@ use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\event\EventHandler;
 use wcf\system\exception\PermissionDeniedException;
 use wcf\system\exception\UserInputException;
-use wcf\system\image\ImageHandler;
 use wcf\system\request\LinkHandler;
 use wcf\system\upload\DefaultUploadFileSaveStrategy;
 use wcf\system\upload\DefaultUploadFileValidationStrategy;
 use wcf\system\WCF;
 use wcf\util\ArrayUtil;
-use wcf\util\ExifUtil;
 use wcf\util\FileUtil;
 
 /**
diff --git a/wcfsetup/install/files/lib/data/page/Page.class.php b/wcfsetup/install/files/lib/data/page/Page.class.php
index b7685faaa6..4ad6350607 100644
--- a/wcfsetup/install/files/lib/data/page/Page.class.php
+++ b/wcfsetup/install/files/lib/data/page/Page.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\data\page;
-use wcf\data\application\Application;
 use wcf\data\DatabaseObject;
 use wcf\data\TDatabaseObjectOptions;
 use wcf\data\TDatabaseObjectPermissions;
diff --git a/wcfsetup/install/files/lib/data/sitemap/Sitemap.class.php b/wcfsetup/install/files/lib/data/sitemap/Sitemap.class.php
index 960949a1cf..ddbe7071bb 100644
--- a/wcfsetup/install/files/lib/data/sitemap/Sitemap.class.php
+++ b/wcfsetup/install/files/lib/data/sitemap/Sitemap.class.php
@@ -4,7 +4,6 @@ use wcf\data\DatabaseObject;
 use wcf\data\TDatabaseObjectOptions;
 use wcf\data\TDatabaseObjectPermissions;
 use wcf\system\exception\SystemException;
-use wcf\system\WCF;
 
 /**
  * Represents a sitemap entry.
diff --git a/wcfsetup/install/files/lib/data/style/StyleAction.class.php b/wcfsetup/install/files/lib/data/style/StyleAction.class.php
index 568b84ccf4..d0380c7b8f 100644
--- a/wcfsetup/install/files/lib/data/style/StyleAction.class.php
+++ b/wcfsetup/install/files/lib/data/style/StyleAction.class.php
@@ -15,7 +15,6 @@ use wcf\system\upload\DefaultUploadFileValidationStrategy;
 use wcf\system\Regex;
 use wcf\system\WCF;
 use wcf\util\FileUtil;
-use wcf\util\StringUtil;
 
 /**
  * Executes style-related actions.
diff --git a/wcfsetup/install/files/lib/data/user/User.class.php b/wcfsetup/install/files/lib/data/user/User.class.php
index ec9a26ae11..2c59dd8df4 100644
--- a/wcfsetup/install/files/lib/data/user/User.class.php
+++ b/wcfsetup/install/files/lib/data/user/User.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\data\user;
 use wcf\data\user\group\UserGroup;
-use wcf\data\user\UserList;
 use wcf\data\DatabaseObject;
 use wcf\data\IUserContent;
 use wcf\system\cache\builder\UserOptionCacheBuilder;
diff --git a/wcfsetup/install/files/lib/data/user/UserAction.class.php b/wcfsetup/install/files/lib/data/user/UserAction.class.php
index 42c49bd970..3d95d60d4e 100644
--- a/wcfsetup/install/files/lib/data/user/UserAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserAction.class.php
@@ -2,7 +2,6 @@
 namespace wcf\data\user;
 use wcf\data\user\avatar\UserAvatarAction;
 use wcf\data\user\group\UserGroup;
-use wcf\data\user\UserEditor;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IClipboardAction;
 use wcf\data\ISearchAction;
diff --git a/wcfsetup/install/files/lib/data/user/UserBirthdayAction.class.php b/wcfsetup/install/files/lib/data/user/UserBirthdayAction.class.php
index 9536419d03..ba10a6d01f 100644
--- a/wcfsetup/install/files/lib/data/user/UserBirthdayAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/UserBirthdayAction.class.php
@@ -1,7 +1,5 @@
 <?php
 namespace wcf\data\user;
-use wcf\data\user\UserProfileAction;
-use wcf\data\user\UserProfileList;
 use wcf\data\IGroupedUserListAction;
 use wcf\system\cache\builder\UserOptionCacheBuilder;
 use wcf\system\exception\UserInputException;
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 d629166f05..2b95e2932a 100644
--- a/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php
+++ b/wcfsetup/install/files/lib/data/user/group/UserGroupEditor.class.php
@@ -4,7 +4,6 @@ use wcf\data\DatabaseObjectEditor;
 use wcf\data\IEditableCachedObject;
 use wcf\system\cache\builder\UserGroupCacheBuilder;
 use wcf\system\cache\builder\UserGroupPermissionCacheBuilder;
-use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\SystemException;
 use wcf\system\session\SessionHandler;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreAction.class.php b/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreAction.class.php
index ceab9b8240..7079d851d2 100644
--- a/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreAction.class.php
+++ b/wcfsetup/install/files/lib/data/user/ignore/UserIgnoreAction.class.php
@@ -1,7 +1,5 @@
 <?php
 namespace wcf\data\user\ignore;
-use wcf\data\user\ignore\UserIgnore;
-use wcf\data\user\ignore\UserIgnoreEditor;
 use wcf\data\user\UserProfile;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\system\exception\IllegalLinkException;
diff --git a/wcfsetup/install/files/lib/form/MessageForm.class.php b/wcfsetup/install/files/lib/form/MessageForm.class.php
index 1a69b681ad..c69e436945 100644
--- a/wcfsetup/install/files/lib/form/MessageForm.class.php
+++ b/wcfsetup/install/files/lib/form/MessageForm.class.php
@@ -306,7 +306,7 @@ abstract class MessageForm extends AbstractCaptchaForm {
 		$this->text = $htmlInputProcessor->process($this->text);
 		
 		// parse URLs
-		/*
+		/* TODO
 		if ($this->preParse == 1) {
 			// BBCodes are enabled
 			if ($this->enableBBCodes) {
diff --git a/wcfsetup/install/files/lib/system/attachment/AbstractAttachmentObjectType.class.php b/wcfsetup/install/files/lib/system/attachment/AbstractAttachmentObjectType.class.php
index 0c3a354a12..a5e3f1737b 100644
--- a/wcfsetup/install/files/lib/system/attachment/AbstractAttachmentObjectType.class.php
+++ b/wcfsetup/install/files/lib/system/attachment/AbstractAttachmentObjectType.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\attachment;
-use wcf\system\attachment\IAttachmentObjectType;
 use wcf\system\WCF;
 use wcf\util\ArrayUtil;
 
diff --git a/wcfsetup/install/files/lib/system/background/BackgroundQueueHandler.class.php b/wcfsetup/install/files/lib/system/background/BackgroundQueueHandler.class.php
index 042ca28abf..3ed9eb88fa 100644
--- a/wcfsetup/install/files/lib/system/background/BackgroundQueueHandler.class.php
+++ b/wcfsetup/install/files/lib/system/background/BackgroundQueueHandler.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\background;
 use wcf\data\user\User;
 use wcf\system\background\job\AbstractBackgroundJob;
-use wcf\system\exception\LoggedException;
 use wcf\system\exception\SystemException;
 use wcf\system\session\SessionHandler;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/bulk/processing/user/ExportMailAddressUserBulkProcessingAction.class.php b/wcfsetup/install/files/lib/system/bulk/processing/user/ExportMailAddressUserBulkProcessingAction.class.php
index 535db422f2..45356fb5d4 100644
--- a/wcfsetup/install/files/lib/system/bulk/processing/user/ExportMailAddressUserBulkProcessingAction.class.php
+++ b/wcfsetup/install/files/lib/system/bulk/processing/user/ExportMailAddressUserBulkProcessingAction.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\bulk\processing\user;
-use wcf\data\user\UserAction;
 use wcf\data\user\UserList;
 use wcf\data\DatabaseObjectList;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/cache/builder/MenuCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/MenuCacheBuilder.class.php
index 320c3cf44c..0a8b1468b2 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/MenuCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/MenuCacheBuilder.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\cache\builder;
 use wcf\data\menu\item\MenuItemList;
-use wcf\data\menu\item\MenuItemNodeTree;
 use wcf\data\menu\MenuList;
 
 /**
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 2a11d18318..afb0a32bcb 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\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\WCF;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cache/builder/UserBirthdayCacheBuilder.class.php b/wcfsetup/install/files/lib/system/cache/builder/UserBirthdayCacheBuilder.class.php
index 746def7ce9..8189e5a524 100644
--- a/wcfsetup/install/files/lib/system/cache/builder/UserBirthdayCacheBuilder.class.php
+++ b/wcfsetup/install/files/lib/system/cache/builder/UserBirthdayCacheBuilder.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\cache\builder;
 use wcf\data\user\User;
-use wcf\system\cache\builder\AbstractCacheBuilder;
 use wcf\system\WCF;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php b/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
index 5db8e12286..7848d4f183 100644
--- a/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
+++ b/wcfsetup/install/files/lib/system/cache/source/RedisCacheSource.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\cache\source;
 use wcf\system\exception\SystemException;
 use wcf\system\Regex;
-use wcf\system\WCF;
 use wcf\util\StringUtil;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/category/SmileyCategoryType.class.php b/wcfsetup/install/files/lib/system/category/SmileyCategoryType.class.php
index 73c7f14dad..55ba0e126b 100644
--- a/wcfsetup/install/files/lib/system/category/SmileyCategoryType.class.php
+++ b/wcfsetup/install/files/lib/system/category/SmileyCategoryType.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\category;
 use wcf\data\category\CategoryEditor;
 use wcf\system\cache\builder\SmileyCacheBuilder;
-use wcf\system\category\AbstractCategoryType;
 use wcf\system\WCF;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/cli/command/HelpCLICommand.class.php b/wcfsetup/install/files/lib/system/cli/command/HelpCLICommand.class.php
index 0b7579e49b..b68959b3c5 100644
--- a/wcfsetup/install/files/lib/system/cli/command/HelpCLICommand.class.php
+++ b/wcfsetup/install/files/lib/system/cli/command/HelpCLICommand.class.php
@@ -1,9 +1,6 @@
 <?php
 namespace wcf\system\cli\command;
 use wcf\system\CLIWCF;
-use wcf\util\CLIUtil;
-use wcf\util\DirectoryUtil;
-use wcf\util\StringUtil;
 use Zend\Console\Exception\RuntimeException as ArgvException;
 use Zend\Console\Getopt as ArgvParser;
 
diff --git a/wcfsetup/install/files/lib/system/condition/AbstractTimestampCondition.class.php b/wcfsetup/install/files/lib/system/condition/AbstractTimestampCondition.class.php
index 9195333a48..cbcf45f3f0 100644
--- a/wcfsetup/install/files/lib/system/condition/AbstractTimestampCondition.class.php
+++ b/wcfsetup/install/files/lib/system/condition/AbstractTimestampCondition.class.php
@@ -1,8 +1,6 @@
 <?php
 namespace wcf\system\condition;
 use wcf\data\condition\Condition;
-use wcf\data\user\User;
-use wcf\data\user\UserList;
 use wcf\data\DatabaseObject;
 use wcf\data\DatabaseObjectList;
 use wcf\system\exception\UserInputException;
diff --git a/wcfsetup/install/files/lib/system/database/DatabaseException.class.php b/wcfsetup/install/files/lib/system/database/DatabaseException.class.php
index d50a312dc8..13562887e1 100644
--- a/wcfsetup/install/files/lib/system/database/DatabaseException.class.php
+++ b/wcfsetup/install/files/lib/system/database/DatabaseException.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\database;
 use wcf\system\database\statement\PreparedStatement;
 use wcf\system\exception\SystemException;
-use wcf\util\StringUtil;
 
 /**
  * DatabaseException is a specific SystemException for database errors.
diff --git a/wcfsetup/install/files/lib/system/email/mime/HtmlTextMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/HtmlTextMimePart.class.php
index 586816b5ab..996236b7f9 100644
--- a/wcfsetup/install/files/lib/system/email/mime/HtmlTextMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/HtmlTextMimePart.class.php
@@ -1,7 +1,5 @@
 <?php
 namespace wcf\system\email\mime;
-use wcf\system\email\UserMailbox;
-use wcf\system\WCF;
 
 /**
  * HtmlTextMimePart is a text/html implementation of a RecipientAwareTextMimePart.
diff --git a/wcfsetup/install/files/lib/system/email/mime/PlainTextMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/PlainTextMimePart.class.php
index d0a17d5d93..8c2afc0685 100644
--- a/wcfsetup/install/files/lib/system/email/mime/PlainTextMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/PlainTextMimePart.class.php
@@ -1,7 +1,5 @@
 <?php
 namespace wcf\system\email\mime;
-use wcf\system\email\UserMailbox;
-use wcf\system\WCF;
 
 /**
  * PlainTextMimePart is a text/plain implementation of a RecipientAwareTextMimePart.
diff --git a/wcfsetup/install/files/lib/system/email/mime/RecipientAwareTextMimePart.class.php b/wcfsetup/install/files/lib/system/email/mime/RecipientAwareTextMimePart.class.php
index d1fddfb0a8..06eb261213 100644
--- a/wcfsetup/install/files/lib/system/email/mime/RecipientAwareTextMimePart.class.php
+++ b/wcfsetup/install/files/lib/system/email/mime/RecipientAwareTextMimePart.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\email\mime;
 use wcf\system\email\Mailbox;
-use wcf\system\email\UserMailbox;
 use wcf\system\WCF;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/exception/LoggedException.class.php b/wcfsetup/install/files/lib/system/exception/LoggedException.class.php
index fb90f13c7c..cc84ce673b 100644
--- a/wcfsetup/install/files/lib/system/exception/LoggedException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/LoggedException.class.php
@@ -1,9 +1,6 @@
 <?php
 namespace wcf\system\exception;
 // @codingStandardsIgnoreFile
-use wcf\system\WCF;
-use wcf\util\JSON;
-use wcf\util\StringUtil;
 
 /**
  * A logged exceptions prevents information disclosures and provides an easy
diff --git a/wcfsetup/install/files/lib/system/exception/SystemException.class.php b/wcfsetup/install/files/lib/system/exception/SystemException.class.php
index 4c19625f2e..3ae1062586 100644
--- a/wcfsetup/install/files/lib/system/exception/SystemException.class.php
+++ b/wcfsetup/install/files/lib/system/exception/SystemException.class.php
@@ -1,8 +1,5 @@
 <?php
 namespace wcf\system\exception;
-use wcf\system\WCF;
-use wcf\util\FileUtil;
-use wcf\util\StringUtil;
 
 /**
  * A SystemException is thrown when an unexpected error occurs.
diff --git a/wcfsetup/install/files/lib/system/language/I18nHandler.class.php b/wcfsetup/install/files/lib/system/language/I18nHandler.class.php
index 89260483f5..659cb45ced 100644
--- a/wcfsetup/install/files/lib/system/language/I18nHandler.class.php
+++ b/wcfsetup/install/files/lib/system/language/I18nHandler.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\language;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\SystemException;
-use wcf\system\language\LanguageFactory;
 use wcf\system\Regex;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/mail/DebugMailSender.class.php b/wcfsetup/install/files/lib/system/mail/DebugMailSender.class.php
index 87f63eb33e..288fc9ec4b 100644
--- a/wcfsetup/install/files/lib/system/mail/DebugMailSender.class.php
+++ b/wcfsetup/install/files/lib/system/mail/DebugMailSender.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\mail;
 use wcf\system\io\File;
-use wcf\util\FileUtil;
 
 /**
  * DebugMailSender is a debug implementation of mailsender which writes emails in
diff --git a/wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php b/wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php
index db2334786e..e002ee9027 100644
--- a/wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php
+++ b/wcfsetup/install/files/lib/system/menu/acp/ACPMenu.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\menu\acp;
 use wcf\system\cache\builder\ACPMenuCacheBuilder;
-use wcf\system\event\EventHandler;
 use wcf\system\menu\TreeMenu;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/menu/user/profile/UserProfileMenu.class.php b/wcfsetup/install/files/lib/system/menu/user/profile/UserProfileMenu.class.php
index 552c6f2f47..c0db0b6850 100644
--- a/wcfsetup/install/files/lib/system/menu/user/profile/UserProfileMenu.class.php
+++ b/wcfsetup/install/files/lib/system/menu/user/profile/UserProfileMenu.class.php
@@ -4,7 +4,6 @@ use wcf\data\user\profile\menu\item\UserProfileMenuItem;
 use wcf\system\cache\builder\UserProfileMenuCacheBuilder;
 use wcf\system\event\EventHandler;
 use wcf\system\SingletonFactory;
-use wcf\system\WCF;
 
 /**
  * Builds the user profile menu.
diff --git a/wcfsetup/install/files/lib/system/option/AbstractCategoryMultiSelectOptionType.class.php b/wcfsetup/install/files/lib/system/option/AbstractCategoryMultiSelectOptionType.class.php
index 2a6d7de4b6..3ffcb34023 100644
--- a/wcfsetup/install/files/lib/system/option/AbstractCategoryMultiSelectOptionType.class.php
+++ b/wcfsetup/install/files/lib/system/option/AbstractCategoryMultiSelectOptionType.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\option;
 use wcf\data\option\Option;
 use wcf\system\category\CategoryHandler;
 use wcf\system\exception\UserInputException;
-use wcf\system\option\AbstractOptionType;
 use wcf\system\WCF;
 use wcf\util\ArrayUtil;
 
diff --git a/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php b/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
index c37a93be43..85078a2d50 100644
--- a/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
+++ b/wcfsetup/install/files/lib/system/package/PackageUpdateDispatcher.class.php
@@ -10,7 +10,6 @@ use wcf\system\database\util\PreparedStatementConditionBuilder;
 use wcf\system\exception\HTTPUnauthorizedException;
 use wcf\system\exception\SystemException;
 use wcf\system\io\RemoteFile;
-use wcf\system\package\PackageUpdateUnauthorizedException;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
 use wcf\util\HTTPRequest;
diff --git a/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandlerV2.class.php b/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandlerV2.class.php
index 30f9fb5cf0..f73706f227 100644
--- a/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandlerV2.class.php
+++ b/wcfsetup/install/files/lib/system/recaptcha/RecaptchaHandlerV2.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\recaptcha;
-use wcf\system\exception\SystemException;
 use wcf\system\exception\UserInputException;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
diff --git a/wcfsetup/install/files/lib/system/request/ControllerMap.class.php b/wcfsetup/install/files/lib/system/request/ControllerMap.class.php
index 063b3e38e0..2393c91926 100644
--- a/wcfsetup/install/files/lib/system/request/ControllerMap.class.php
+++ b/wcfsetup/install/files/lib/system/request/ControllerMap.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\request;
 use wcf\page\CmsPage;
-use wcf\system\application\ApplicationHandler;
 use wcf\system\cache\builder\RoutingCacheBuilder;
 use wcf\system\exception\SystemException;
 use wcf\system\SingletonFactory;
diff --git a/wcfsetup/install/files/lib/system/request/FlexibleRoute.class.php b/wcfsetup/install/files/lib/system/request/FlexibleRoute.class.php
index 3dc5d065c6..ba6f6e224f 100644
--- a/wcfsetup/install/files/lib/system/request/FlexibleRoute.class.php
+++ b/wcfsetup/install/files/lib/system/request/FlexibleRoute.class.php
@@ -1,6 +1,5 @@
 <?php
 namespace wcf\system\request;
-use wcf\system\application\ApplicationHandler;
 use wcf\system\menu\page\PageMenu;
 
 /**
diff --git a/wcfsetup/install/files/lib/system/request/LinkHandler.class.php b/wcfsetup/install/files/lib/system/request/LinkHandler.class.php
index bd7a0647b6..8e77ba2da9 100644
--- a/wcfsetup/install/files/lib/system/request/LinkHandler.class.php
+++ b/wcfsetup/install/files/lib/system/request/LinkHandler.class.php
@@ -127,7 +127,7 @@ class LinkHandler extends SingletonFactory {
 				$controller = 'Index';
 			}
 			else {
-				return '';// PageMenu::getInstance()->getLandingPage()->getProcessor()->getLink();
+				return '';// TODO: PageMenu::getInstance()->getLandingPage()->getProcessor()->getLink();
 			}
 		}
 		
diff --git a/wcfsetup/install/files/lib/system/request/RequestHandler.class.php b/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
index b601080418..8985988808 100644
--- a/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
+++ b/wcfsetup/install/files/lib/system/request/RequestHandler.class.php
@@ -5,7 +5,6 @@ use wcf\system\exception\AJAXException;
 use wcf\system\exception\IllegalLinkException;
 use wcf\system\exception\NamedUserException;
 use wcf\system\exception\SystemException;
-use wcf\system\menu\page\PageMenu;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
 use wcf\util\FileUtil;
diff --git a/wcfsetup/install/files/lib/system/request/route/DynamicRequestRoute.class.php b/wcfsetup/install/files/lib/system/request/route/DynamicRequestRoute.class.php
index c322567319..0473ad60d6 100644
--- a/wcfsetup/install/files/lib/system/request/route/DynamicRequestRoute.class.php
+++ b/wcfsetup/install/files/lib/system/request/route/DynamicRequestRoute.class.php
@@ -1,10 +1,7 @@
 <?php
 namespace wcf\system\request\route;
-use wcf\system\application\ApplicationHandler;
-use wcf\system\menu\page\PageMenu;
 use wcf\system\request\ControllerMap;
 use wcf\system\request\RequestHandler;
-use wcf\system\request\RouteHandler;
 
 /**
  * Dynamic route implementation to resolve HTTP requests, handling controllers using a distinct pattern.
diff --git a/wcfsetup/install/files/lib/system/style/StyleCompiler.class.php b/wcfsetup/install/files/lib/system/style/StyleCompiler.class.php
index 8cacafc4f2..a5d324e6f4 100644
--- a/wcfsetup/install/files/lib/system/style/StyleCompiler.class.php
+++ b/wcfsetup/install/files/lib/system/style/StyleCompiler.class.php
@@ -339,7 +339,7 @@ class StyleCompiler extends SingletonFactory {
 		FileUtil::makeWritable($filename.'.css');
 		
 		// convert stylesheet to RTL
-		//$content = StyleUtil::convertCSSToRTL($content);
+		//TODO: $content = StyleUtil::convertCSSToRTL($content);
 		
 		// write stylesheet for RTL
 		file_put_contents($filename.'-rtl.css', $content);
diff --git a/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php b/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
index 9b595d235a..df9bd20d54 100644
--- a/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
+++ b/wcfsetup/install/files/lib/system/template/TemplateScriptingCompiler.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\template;
 use wcf\system\exception\SystemException;
 use wcf\system\template\plugin\ICompilerTemplatePlugin;
 use wcf\system\template\plugin\IPrefilterTemplatePlugin;
-use wcf\system\WCF;
 use wcf\util\StringStack;
 use wcf\util\StringUtil;
 
diff --git a/wcfsetup/install/files/lib/system/upload/DefaultUploadFileSaveStrategy.class.php b/wcfsetup/install/files/lib/system/upload/DefaultUploadFileSaveStrategy.class.php
index 107520e2bf..af17f4b137 100644
--- a/wcfsetup/install/files/lib/system/upload/DefaultUploadFileSaveStrategy.class.php
+++ b/wcfsetup/install/files/lib/system/upload/DefaultUploadFileSaveStrategy.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\upload;
 use wcf\data\AbstractDatabaseObjectAction;
 use wcf\data\IFile;
 use wcf\data\IThumbnailFile;
-use wcf\system\event\EventHandler;
 use wcf\system\image\ImageHandler;
 use wcf\system\WCF;
 use wcf\util\ExifUtil;
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentResponseUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentResponseUserActivityEvent.class.php
index b3687c7ede..5e2e2a3fa9 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentResponseUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentResponseUserActivityEvent.class.php
@@ -3,7 +3,6 @@ namespace wcf\system\user\activity\event;
 use wcf\data\comment\response\CommentResponseList;
 use wcf\data\comment\CommentList;
 use wcf\data\user\UserProfileCache;
-use wcf\system\user\activity\event\IUserActivityEvent;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentUserActivityEvent.class.php b/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentUserActivityEvent.class.php
index 47f4663076..c94fbe8c32 100644
--- a/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentUserActivityEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/activity/event/ProfileCommentUserActivityEvent.class.php
@@ -2,7 +2,6 @@
 namespace wcf\system\user\activity\event;
 use wcf\data\comment\CommentList;
 use wcf\data\user\UserProfileCache;
-use wcf\system\user\activity\event\IUserActivityEvent;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
 
diff --git a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentUserNotificationEvent.class.php b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentUserNotificationEvent.class.php
index 19c25ac400..76c5646e55 100644
--- a/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentUserNotificationEvent.class.php
+++ b/wcfsetup/install/files/lib/system/user/notification/event/UserProfileCommentUserNotificationEvent.class.php
@@ -2,8 +2,6 @@
 namespace wcf\system\user\notification\event;
 use wcf\data\user\User;
 use wcf\system\request\LinkHandler;
-use wcf\system\user\notification\event\AbstractUserNotificationEvent;
-use wcf\system\WCF;
 
 /**
  * User notification event for profile commments.
diff --git a/wcfsetup/install/files/lib/system/user/storage/UserStorageHandler.class.php b/wcfsetup/install/files/lib/system/user/storage/UserStorageHandler.class.php
index dfe02e3283..60d6e3dd18 100644
--- a/wcfsetup/install/files/lib/system/user/storage/UserStorageHandler.class.php
+++ b/wcfsetup/install/files/lib/system/user/storage/UserStorageHandler.class.php
@@ -1,7 +1,6 @@
 <?php
 namespace wcf\system\user\storage;
 use wcf\system\database\util\PreparedStatementConditionBuilder;
-use wcf\system\exception\SystemException;
 use wcf\system\SingletonFactory;
 use wcf\system\WCF;
 
-- 
2.20.1