Remove libxml from google_apis dependencies.

google_apis/google_apis.gyp

 # Copyright (c) 2012 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,  # Use higher warning level.
   },
   'includes': [
     '../build/win_precompile.gypi',
   ],
   'targets': [
     {
       # GN version: //google_apis
       'target_name': 'google_apis',
       'type': 'static_library',
       'includes': [
         'determine_use_official_keys.gypi',
       ],
       'dependencies': [
         '../base/base.gyp:base',
         '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../crypto/crypto.gyp:crypto',
         '../net/net.gyp:net',
-        '../third_party/libxml/libxml.gyp:libxml',
         '../url/url.gyp:url_lib',
       ],
       'conditions': [
         ['google_api_key!=""', {
           'defines': ['GOOGLE_API_KEY="<(google_api_key)"'],
         }],
         ['google_default_client_id!=""', {
           'defines': [
             'GOOGLE_DEFAULT_CLIENT_ID="<(google_default_client_id)"',
           ]
@@ skipping 184 matching lines @@
             '../build/isolate.gypi',
           ],
           'sources': [
             'google_apis_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }