Remove Mojo bindings environment.

mojo/mojo_public.gyp

 # Copyright 2014 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.
 
 {
   'includes': [
     'mojo_variables.gypi',
   ],
   'target_defaults' : {
     'include_dirs': [
@@ skipping 214 matching lines @@
       'type': 'static_library',
       'include_dirs': [
         '..'
       ],
       'sources': [
         'public/js/constants.cc',
         'public/js/constants.h',
       ],
     },
     {
-      # GN version: //mojo/public/cpp/environment:standalone
-      'target_name': 'mojo_environment_standalone',
-      'type': 'static_library',
-      'sources': [
-        'public/c/environment/async_waiter.h',
-        'public/c/environment/logger.h',
-        'public/cpp/environment/async_waiter.h',
-        'public/cpp/environment/environment.h',
-        'public/cpp/environment/lib/async_waiter.cc',
-        'public/cpp/environment/lib/default_async_waiter.cc',
-        'public/cpp/environment/lib/default_async_waiter.h',
-        'public/cpp/environment/lib/default_logger.cc',
-        'public/cpp/environment/lib/default_logger.h',
-        'public/cpp/environment/lib/default_task_tracker.cc',
-        'public/cpp/environment/lib/default_task_tracker.h',
-        'public/cpp/environment/lib/environment.cc',
-        'public/cpp/environment/lib/logging.cc',
-        'public/cpp/environment/lib/scoped_task_tracking.cc',
-        'public/cpp/environment/lib/scoped_task_tracking.h',
-        'public/cpp/environment/logging.h',
-        'public/cpp/environment/task_tracker.h',
-      ],
-      'include_dirs': [
-        '..',
-      ],
-    },
-    {
       # GN version: //mojo/public/cpp/utility
       'target_name': 'mojo_utility',
       'type': 'static_library',
       'sources': [
         'public/cpp/utility/lib/mutex.cc',
         'public/cpp/utility/lib/run_loop.cc',
         'public/cpp/utility/lib/thread.cc',
         'public/cpp/utility/lib/thread_local.h',
         'public/cpp/utility/lib/thread_local_posix.cc',
         'public/cpp/utility/lib/thread_local_win.cc',
@@ skipping 277 matching lines @@
              'mojo_interface_bindings_java_sources',
              'mojo_public_java',
              '<(DEPTH)/base/base.gyp:base_java',
            ],
            'includes': [ '../build/java.gypi' ],
         },
       ],
     }],
   ],
 }