Remove Chrome's own version of libaddressinput in favor of the upstream.

third_party/libaddressinput/chromium/cpp/rapidjson.gyp

-# Copyright (C) 2013 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-# http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-{
-  'variables': {
-    'rapidjson_dir%': '<(DEPTH)/../externals/rapidjson/include',
-  },
-  'targets': [
-    {
-      'target_name': 'rapidjson',
-      'type': 'none',
-      'all_dependent_settings': {
-        'include_dirs': [
-          '<(rapidjson_dir)',
-        ],
-      },
-    },
-  ],
-}