Remove some dead code.

webrtc/voice_engine/voice_engine.gyp

 # Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 {
   'includes': [
@@ skipping 144 matching lines @@
             '<(webrtc_root)/test/test.gyp:channel_transport',
             '<(webrtc_root)/test/test.gyp:test_support',
             '<(webrtc_root)/webrtc.gyp:rtc_event_log',
            ],
           'sources': [
             'test/auto_test/automated_mode.cc',
             'test/auto_test/extended/agc_config_test.cc',
             'test/auto_test/extended/ec_metrics_test.cc',
             'test/auto_test/fakes/conference_transport.cc',
             'test/auto_test/fakes/conference_transport.h',
-            'test/auto_test/fakes/fake_external_transport.cc',
-            'test/auto_test/fakes/fake_external_transport.h',
             'test/auto_test/fakes/loudest_filter.cc',
             'test/auto_test/fakes/loudest_filter.h',
             'test/auto_test/fixtures/after_initialization_fixture.cc',
             'test/auto_test/fixtures/after_initialization_fixture.h',
             'test/auto_test/fixtures/after_streaming_fixture.cc',
             'test/auto_test/fixtures/after_streaming_fixture.h',
             'test/auto_test/fixtures/before_initialization_fixture.cc',
             'test/auto_test/fixtures/before_initialization_fixture.h',
             'test/auto_test/fixtures/before_streaming_fixture.cc',
             'test/auto_test/fixtures/before_streaming_fixture.h',
@@ skipping 102 matching lines @@
               'sources': [
                 'voe_auto_test.isolate',
               ],
             },
           ],
         }],
       ],  # conditions
     }], # include_tests
   ], # conditions
 }