/**
* Delete a folder from the hierarchy cache.
*
* @param string $id The folder's uid.
*/
public function deleteFolderFromHierarchy($uid)
{
$this->_cache->deleteFolder($uid);
$this->_as->state->removeState(array('id' => $uid, 'devId' => $this->_as->device->id, 'user' => $this->_as->device->user));
}