Remove unnecessary file

apps/files/share.php

-<?php
-
-/**
-* ownCloud
-*
-* @author Michael Gapczynski
-* @copyright 2012 Michael Gapczynski mtgap@owncloud.com
-*
-* This library is free software; you can redistribute it and/or
-* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
-* License as published by the Free Software Foundation; either
-* version 3 of the License, or any later version.
-*
-* This library is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
-*
-* You should have received a copy of the GNU Affero General Public
-* License along with this library.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-class OC_Share_Backend_Files extends OCP\Share_Backend {
-
-	public function getSource($item, $uid) {
-		return $item;
-	}
-}
-
-class OC_Share_Backend_Folders extends OC_Share_Backend_Files {
-
-	public function share($
-	public function getDirectoryContent($folder) {
-		
-	}
-}
-
-?>
\ No newline at end of file