Deprecate `WCF.System.PushNotification`

Because it is not (or no longer) used in the software.

see #5974

diff --git a/wcfsetup/install/files/js/WCF.js b/wcfsetup/install/files/js/WCF.js
index 2b958168097730fa45d17cd448424023ca36b5cd..016bafeeac3cf8b4c1acfddf11adc03fb5e900b5 100755 (executable)
--- a/wcfsetup/install/files/js/WCF.js
+++ b/wcfsetup/install/files/js/WCF.js
@@ -4165,6 +4165,8 @@ WCF.System.DisableZoom = {
 
 /**
  * System-wide handler for push notifications.
+ * 
+ * @deprecated 6.2 Not (or no longer) used in the software.
  */
 WCF.System.PushNotification = {
        /**