Remove unused TypingMonitor class.

talk/libjingle.gyp

 #
 # libjingle
 # Copyright 2012 Google Inc.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 #  1. Redistributions of source code must retain the above copyright notice,
 #     this list of conditions and the following disclaimer.
 #  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 671 matching lines @@
         'session/media/currentspeakermonitor.h',
         'session/media/mediamonitor.cc',
         'session/media/mediamonitor.h',
         'session/media/mediasession.cc',
         'session/media/mediasession.h',
         'session/media/mediasink.h',
         'session/media/rtcpmuxfilter.cc',
         'session/media/rtcpmuxfilter.h',
         'session/media/srtpfilter.cc',
         'session/media/srtpfilter.h',
-        'session/media/typingmonitor.cc',
-        'session/media/typingmonitor.h',
         'session/media/voicechannel.h',
       ],
     },  # target libjingle_p2p
     {
       'target_name': 'libjingle_peerconnection',
       'type': 'static_library',
       'dependencies': [
         'libjingle',
         'libjingle_media',
         'libjingle_p2p',
@@ skipping 73 matching lines @@
         ['OS=="android" and build_with_chromium==0', {
           'sources': [
             'app/webrtc/androidvideocapturer.h',
             'app/webrtc/androidvideocapturer.cc',
            ],
         }],
       ],
     },  # target libjingle_peerconnection
   ],
 }