Remove RemoteAccessClientFirewallTraversal policy and code paths.

ppapi/api/dev/ppb_query_policy_dev.idl

-/* 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.
- */
-
-/**
- * This file defines the <code>PPB_QueryPolicy_Dev</code> interface.
- */
-label Chrome {
-  M14 = 0.1
-};
-
-interface PPB_QueryPolicy_Dev {
-  /**
-   * Subscribes the instance to receive updates via the
-   * <code>PPP_PolicyUpdate_Dev</code> interface.
-   *
-   * The plugin is guaranteed to get one update immediately via the
-   * <code>PP_PolicyUpdate_Dev</code> interface. This allows the plugin to
-   * retrieve the current policy when subscribing for the first time.
-   *
-   * @param[in] instance A <code>PP_Instance</code> indentifying one instance
-   * of a module.
-   */
-  void SubscribeToPolicyUpdates([in] PP_Instance instance);
-};