Remove app_remoting.

remoting/webapp/app_remoting/js/gaia_license_manager.js

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-/** @suppress {duplicate} */
-var remoting = remoting || {};
-
-(function() {
-
-"use strict";
-
-/**
- * A simple implementation of AppRemotingAuth using the user's GAIA token.
- *
- * @implements{remoting.LicenseManager}
- * @constructor
- */
-remoting.GaiaLicenseManager = function() {};
-
-/**
- * @param {string} oauthToken
- * @return {Promise<!string>}
- */
-remoting.GaiaLicenseManager.prototype.getSubscriptionToken =
-    function(oauthToken) {
-  return Promise.resolve(oauthToken);
-};
-
-/**
- * @param {string} oauthToken
- * @return {Promise<!string>}
- */
-remoting.GaiaLicenseManager.prototype.getAccessToken = function(oauthToken) {
-  return Promise.resolve("");
-};
-
-})();
-