server/apps/files_external/ajax/removeMountPoint.php

<?php
/**
 * @author Lukas Reschke <lukas@owncloud.com>
 * @author Michael Gapczynski <GapczynskiM@gmail.com>
 * @author Thomas Müller <thomas.mueller@tmit.eu>
 *
 * @copyright Copyright (c) 2015, ownCloud, Inc.
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * This program 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, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */
OCP\JSON::checkAppEnabled('files_external');
OCP\JSON::callCheck();

if (!isset($_POST['isPersonal']))
	return;
if (!isset($_POST['mountPoint']))
	return;
if (!isset($_POST['mountType']))
	return;
if (!isset($_POST['applicable']))
	return;

if ($_POST['isPersonal'] == 'true') {
	OCP\JSON::checkLoggedIn();
	$isPersonal = true;
} else {
	OCP\JSON::checkAdminUser();
	$isPersonal = false;
}

OC_Mount_Config::removeMountPoint((string)$_POST['mountPoint'], (string)$_POST['mountType'], (string)$_POST['applicable'], $isPersonal);