Remove import ONC option from internet settings (to be moved to net-internals).

chrome/browser/resources/options/chromeos/internet_options.js

 // Copyright (c) 2011 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.
 
 cr.define('options', function() {
   var OptionsPage = options.OptionsPage;
   const ArrayDataModel = cr.ui.ArrayDataModel;
 
   /////////////////////////////////////////////////////////////////////////////
   // InternetOptions class:
@@ skipping 70 matching lines @@
       $('disable-cellular').addEventListener('click', function(event) {
         event.target.disabled = true;
         chrome.send('disableCellular', []);
       });
       $('change-proxy-button').addEventListener('click', function(event) {
         OptionsPage.closeOverlay();
         OptionsPage.showPageByName('proxy', false);
         chrome.send('coreOptionsUserMetricsAction',
             ['Options_ShowProxySettings']);
       });
-      $('upload-network-settings').addEventListener('change', function(event) {
-        var file = event.target.files[0];
-        var reader = new FileReader();
-        reader.onloadend = function(e) {
-          chrome.send('importNetworkSettings', [this.result]);
-        };
-        reader.readAsText(file);
-      }, false);
       $('buyplanDetails').addEventListener('click', function(event) {
         chrome.send('buyDataPlan', []);
         OptionsPage.closeOverlay();
       });
       $('cellularApnUseDefault').addEventListener('click', function(event) {
         var data = $('connectionState').data;
         var apnSelector = $('selectApn');
 
         if (data.userApnIndex != -1) {
           apnSelector.remove(data.userApnIndex);
@@ skipping 553 matching lines @@
 
   InternetOptions.invalidNetworkSettings = function () {
     alert(localStrings.getString('invalidNetworkSettings'));
   };
 
   // Export
   return {
     InternetOptions: InternetOptions
   };
 });