Remove all use of precompile headers from ceee gyp files....

ceee/ie/plugin/bho/bho.gyp

 # Copyright (c) 2010 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     '../../../../build/common.gypi',
@@ skipping 63 matching lines @@
         'window_message_source.h',
 
         '../../../../chrome_frame/renderer_glue.cc',  # needed for cf_ie.lib
         '../../../../chrome/common/extensions/extension_resource.cc',
         '../../../../chrome/common/extensions/extension_resource.h',
       ],
       'include_dirs': [
         # For chrome_tab.h
         '<(SHARED_INTERMEDIATE_DIR)',
       ],
-      'configurations': {
-        'Debug': {
-          'msvs_precompiled_source': '../../common/precompile.cc',
-          'msvs_precompiled_header': '../../common/precompile.h',
-        },
-      },
     },
   ]
 }