Fix accessible label for network select control in OOBE.

chrome/browser/resources/chromeos/login/oobe_screen_network.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.
 
 /**
  * @fileoverview Oobe network screen implementation.
  */
 
 cr.define('oobe', function() {
   /**
@@ skipping 25 matching lines @@
       Oobe.setupSelect($('language-select'),
                        templateData.languageList,
                        'networkOnLanguageChanged');
 
       Oobe.setupSelect($('keyboard-select'),
                        templateData.inputMethodsList,
                        'networkOnInputMethodChanged');
 
       this.dropdown_ = $('networks-list');
       cr.ui.DropDown.decorate(this.dropdown_);
-      this.dropdown_.setAttribute('aria-label',
-                                  localStrings.getString('selectNetwork'));
     },
 
     onBeforeShow: function(data) {
       cr.ui.DropDown.show('networks-list', true, -1);
     },
 
     onBeforeHide: function() {
       cr.ui.DropDown.hide('networks-list');
     },
 
@@ skipping 37 matching lines @@
     error.appendChild(messageDiv);
 
     $('bubble').showContentForElement($('networks-list'), error,
                                       cr.ui.Bubble.Attachment.BOTTOM);
   };
 
   return {
     NetworkScreen: NetworkScreen
   };
 });