Revert of Make ChromeVox Next a setting in options page.

chrome/browser/resources/chromeos/chromevox/cvox2/background/automation_util.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.
 
 /**
  * @fileoverview ChromeVox utilities for the automation extension API.
  */
 
 goog.provide('AutomationUtil');
 
@@ skipping 273 matching lines @@
       return hit;
     child = child.nextSibling;
   }
 
   if (point.x <= (loc.left + loc.width) && point.x >= loc.left &&
       point.y <= (loc.top + loc.height) && point.y >= loc.top)
     return node;
   return null;
 };
 
-/**
- * Gets a top level root.
- * @param {!AutomationNode} node
- * @return {AutomationNode}
- */
-AutomationUtil.getTopLevelRoot = function(node) {
-  var root = node.root;
-  if (!root || root.role == RoleType.desktop)
-    return null;
-
-  while (root &&
-      root.parent &&
-      root.parent.root &&
-      root.parent.root.role != RoleType.desktop) {
-    root = root.parent.root;
-  }
-  return root;
-};
-
 });  // goog.scope