Remove MOZ_B2G leftovers and some dead B2G-only components.

dom/webidl/MozApplicationEvent.webidl

@@ -1,16 +0,0 @@
-/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this file,
- * You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-[Constructor(DOMString type, optional MozApplicationEventInit eventInitDict), ChromeOnly]
-interface MozApplicationEvent : Event
-{
-  readonly attribute DOMApplication? application;
-};
-
-dictionary MozApplicationEventInit : EventInit
-{
-  DOMApplication? application = null;
-};

dom/webidl/Window.webidl

@@ -343,12 +343,6 @@ partial interface Window {
            attribute EventHandler onuserproximity;
            attribute EventHandler ondevicelight;
 
-#ifdef MOZ_B2G
-           attribute EventHandler onmoztimechange;
-           attribute EventHandler onmoznetworkupload;
-           attribute EventHandler onmoznetworkdownload;
-#endif
-
   void                      dump(DOMString str);
 
   /**

dom/webidl/moz.build

@@ -779,14 +779,6 @@ if CONFIG['MOZ_PHOENIX'] or CONFIG['MOZ_FENNEC'] or CONFIG['MOZ_XULRUNNER']:
         'External.webidl',
     ]
 
-if CONFIG['MOZ_B2G']:
-    WEBIDL_FILES += [
-        'MozApplicationEvent.webidl'
-    ]
-    GENERATED_EVENTS_WEBIDL_FILES += [
-        'MozApplicationEvent.webidl'
-    ]
-
 if CONFIG['ACCESSIBILITY']:
     WEBIDL_FILES += [
         'AccessibleNode.webidl',