Add missing check for permissions to delete moderated content

ref https://www.woltlab.com/community/thread/316974-inhalte-in-der-moderation-lassen-sich-ohne-berechtigung-l%C3%B6schen/

Author: BurntimeX

wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentCommentModerationQueueHandler.class.php

@@ -142,6 +142,20 @@ public function populate(array $queues)
         }
     }
 
+    /**
+     * @inheritDoc
+     */
+    public function canRemoveContent(ModerationQueue $queue)
+    {
+        if ($this->isValid($queue->objectID)) {
+            $comment = $this->getComment($queue->objectID);
+
+            return $this->getCommentManager($comment)->canDeleteComment($comment);
+        }
+
+        return false;
+    }
+
     /**
      * @inheritDoc
      */

wcfsetup/install/files/lib/system/moderation/queue/AbstractCommentResponseModerationQueueHandler.class.php

@@ -163,4 +163,18 @@ public function removeContent(ModerationQueue $queue, $message)
             $responseAction->executeAction();
         }
     }
+
+    /**
+     * @inheritDoc
+     */
+    public function canRemoveContent(ModerationQueue $queue)
+    {
+        if ($this->isValid($queue->objectID)) {
+            $response = $this->getResponse($queue->objectID);
+
+            return $this->getCommentManager($response->getComment())->canDeleteResponse($response);
+        }
+
+        return false;
+    }
 }