/**
  * {@inheritDoc}
  * @see IPluggableAccessModule::unregisterAuthHierarchyFromModule()
  */
 public function unregisterAuthHierarchyFromModule(IPluggableModule $module)
 {
     $authmgr = $this->getAccessManager();
     foreach ($module->getAccessRoles() as $role) {
         $authmgr->removeAuthItem($module, $role);
     }
 }