[Webapp Refactor] Remove remoting.js.

remoting/webapp/crd/js/feedback.js

 // Copyright (c) 2012 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.
 
 'use strict';
 
 var remoting = remoting || {};
 
 /**
  * Attach appropriate event handlers and show or hide the feedback button based
@@ skipping 27 matching lines @@
 /**
  * Pass the current version of Chrome Remote Desktop to the Google Feedback
  * extension and instruct it to show the feedback dialog.
  */
 remoting.sendFeedback_ = function() {
   var message = {
     requestFeedback: true,
     feedbackInfo: {
       description: '',
       systemInformation: [
-        { key: 'version', value: remoting.getExtensionInfo() }
+        { key: 'version', value: remoting.app.getExtensionInfo() }
       ]
     }
   };
   var kFeedbackExtensionId = 'gfdkimpbcpahaombhbimeihdjnejgicl';
   chrome.runtime.sendMessage(kFeedbackExtensionId, message, function() {});
 };