Remove --disable-drive flag and flags section in drive-internals.

chrome/browser/resources/chromeos/drive_internals.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.
 
 /**
  * Converts a number in bytes to a string in megabytes split by comma into
  * three digit block.
  * @param {number} bytes The number in bytes.
  * @return {string} Formatted string in megabytes.
  */
 function ToMegaByteString(bytes) {
   var mb = Math.floor(bytes / (1 << 20));
   return mb.toString().replace(
       /\d+?(?=(\d{3})+$)/g,  // Digit sequence (\d+) followed (?=) by 3n digits.
       function(three_digit_block) { return three_digit_block + ','; }
   );
 }
 
 /**
- * Updates the Drive related Flags section.
- * @param {Array} flags List of dictionaries describing flags.
- */
-function updateDriveRelatedFlags(flags) {
-  var ul = $('drive-related-flags');
-  updateKeyValueList(ul, flags);
-}
-
-/**
  * Updates the Drive related Preferences section.
  * @param {Array} preferences List of dictionaries describing preferences.
  */
 function updateDriveRelatedPreferences(preferences) {
   var ul = $('drive-related-preferences');
   updateKeyValueList(ul, preferences);
 }
 
 /**
  * Updates the Connection Status section.
@@ skipping 261 matching lines @@
   $('button-show-file-entries').addEventListener('click', function() {
     var button = $('button-show-file-entries');
     button.parentNode.removeChild(button);
     chrome.send('listFileEntries');
   });
 
   window.setInterval(function() {
     chrome.send('periodicUpdate');
   }, 1000);
 });