<extensionoptions>: Remove unnecessary code

chrome/renderer/resources/extensions/extension_options.js

 // Copyright 2014 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.
 
 var ExtensionOptionsEvents =
     require('extensionOptionsEvents').ExtensionOptionsEvents;
 var GuestView = require('guestView').GuestView;
 var GuestViewContainer = require('guestViewContainer').GuestViewContainer;
 
 function ExtensionOptionsImpl(extensionoptionsElement) {
   GuestViewContainer.call(this, extensionoptionsElement, 'extensionoptions');
-  this.autosizeDeferred = false;
 
   new ExtensionOptionsEvents(this);
   this.setupElementProperties();
 };
 
 ExtensionOptionsImpl.prototype.__proto__ = GuestViewContainer.prototype;
 
 ExtensionOptionsImpl.VIEW_TYPE = 'ExtensionOptions';
 
 ExtensionOptionsImpl.prototype.onElementAttached = function() {
@@ skipping 47 matching lines @@
       return this.element.getAttribute('extension');
     }.bind(this),
     set: function(value) {
       this.element.setAttribute('extension', value);
     }.bind(this),
     enumerable: true
   });
 };
 
 GuestViewContainer.registerElement(ExtensionOptionsImpl);