MD Settings: Cleanup, remove unnecessary <cr-settings> wrapper.

chrome/browser/resources/settings/settings.js

-// Copyright 2015 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.exportPath('settings');
-assert(!settings.defaultResourceLoaded,
-       'settings.js run twice. You probably have an invalid import.');
-/** Global defined when the main Settings script runs. */
-settings.defaultResourceLoaded = true;
-
-/**
- * @fileoverview
- * 'cr-settings' is the main MD-Settings element, combining the UI and models.
- *
- * Example:
- *
- *    <cr-settings></cr-settings>
- */
-Polymer({
-  is: 'cr-settings',
-
-  /** @override */
-  created: function() {
-    settings.initializeRouteFromUrl();
-  },
-
-  /** @override */
-  ready: function() {
-    this.$.ui.directionDelegate = new settings.DirectionDelegateImpl;
-  },
-});