Remove unnecessary dependency on system_wrappers in libjingle.

third_party/libjingle/libjingle.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.
 
 {
   'includes': [
     '../../build/win_precompile.gypi',
   ],
   'variables': {
     'enabled_libjingle_device_manager%': 0,
@@ skipping 575 matching lines @@
             '<(libjingle_source)/talk/media/webrtc/webrtcmediaengine.cc',
             '<(libjingle_source)/talk/media/webrtc/webrtcmediaengine.h',
             '<(libjingle_source)/talk/media/webrtc/webrtcvideoengine.cc',
             '<(libjingle_source)/talk/media/webrtc/webrtcvideoengine.h',
             '<(libjingle_source)/talk/media/webrtc/webrtcvideoengine2.cc',
             '<(libjingle_source)/talk/media/webrtc/webrtcvideoengine2.h',
             '<(libjingle_source)/talk/media/webrtc/webrtcvoiceengine.cc',
             '<(libjingle_source)/talk/media/webrtc/webrtcvoiceengine.h',
           ],
           'dependencies': [
-            '<(DEPTH)/third_party/webrtc/system_wrappers/source/system_wrappers.gyp:system_wrappers',
             '<(DEPTH)/third_party/webrtc/voice_engine/voice_engine.gyp:voice_engine',
             '<(DEPTH)/third_party/webrtc/webrtc.gyp:webrtc',
             '<@(libjingle_peerconnection_additional_deps)',
             'libjingle_webrtc_common',
           ],
           'conditions': [
             ['libpeer_target_type!="static_library"', {
               'sources': [
                 'overrides/initialize_module.cc',
               ],
@@ skipping 67 matching lines @@
           },
           'dependencies': [
             'libjingle_peerconnection_so',
           ],
           'includes': [ '../../build/java.gypi' ],
         },
       ],
     }],
   ],
 }