Remove orphaned file

ajax/sessions.php

@@ -1,13 +0,0 @@
-<?php
-
-namespace OCA\Documents;
-// Init owncloud
-
-\OCP\User::checkLoggedIn();
-\OCP\JSON::checkAppEnabled('documents');
-
-$sessions = Session::getAll();
-if (!is_array($sessions)){
-	$sessions = array();
-}
-\OCP\JSON::success(array('sessions' => $sessions));