Clean out unused methods from VoiceEngine and VoEBase.

voice_engine/voe_base_impl.h

 /*
  *  Copyright (c) 2012 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.
  */
 
@@ skipping 26 matching lines @@
   }
   voe::TransmitMixer* transmit_mixer() override {
     return shared_->transmit_mixer();
   }
   int Terminate() override;
 
   int CreateChannel() override;
   int CreateChannel(const ChannelConfig& config) override;
   int DeleteChannel(int channel) override;
 
-  int StartReceive(int channel) override;
   int StartPlayout(int channel) override;
   int StartSend(int channel) override;
   int StopPlayout(int channel) override;
   int StopSend(int channel) override;
 
-  int GetVersion(char version[1024]) override;
-
-  int LastError() override;
-
   AudioTransport* audio_transport() override { return this; }
 
-  int AssociateSendChannel(int channel, int accociate_send_channel) override;
-
   // AudioTransport
   int32_t RecordedDataIsAvailable(const void* audio_data,
                                   const size_t number_of_frames,
                                   const size_t bytes_per_sample,
                                   const size_t number_of_channels,
                                   const uint32_t sample_rate,
                                   const uint32_t audio_delay_milliseconds,
                                   const int32_t clock_drift,
                                   const uint32_t volume,
                                   const bool key_pressed,
@@ skipping 47 matching lines @@
   rtc::CriticalSection callbackCritSect_;
   rtc::scoped_refptr<AudioDecoderFactory> decoder_factory_;
 
   AudioFrame audioFrame_;
   voe::SharedData* shared_;
 };
 
 }  // namespace webrtc
 
 #endif  // VOICE_ENGINE_VOE_BASE_IMPL_H_