Remove obsolete phpdoc statement

Author: BurntimeX

wcfsetup/install/files/lib/system/form/builder/container/wysiwyg/WysiwygFormContainer.class.php

@@ -194,7 +194,6 @@ public function addSettingsNodes(array $settingsNodes)
      * @param null|string $objectType name of attachment object type or `null` to unset previous attachment data
      * @param int $parentObjectID id of the parent of the object the attachments belong to or `0` if no such parent exists
      * @param ?int $objectID id of the object the attachments belong to
-     * @return  WysiwygFormContainer            this form container
      * @throws  \BadMethodCallException         if the attachment form field has already been initialized
      */
     public function attachmentData(?string $objectType = null, int $parentObjectID = 0, ?int $objectID = null): static