Fix resources modified during merge

Author: cdujeu

core/src/plugins/core.auth/AbstractAuthDriver.php

@@ -361,10 +361,6 @@ public function listChildrenGroups($baseGroup = "/")
         return ConfService::getConfStorageImpl()->getChildrenGroups($baseGroup);
     }
 
-    public function getStats(){
-        return $this->getId();
-    }
-
     /**
      * @return string
      */