Remove VoEVolumeControl interface.

webrtc/voice_engine/test/auto_test/voe_standard_test.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 18 matching lines @@
 class SubAPIManager {
  public:
   SubAPIManager()
     : _base(true),
       _codec(false),
       _file(false),
       _hardware(false),
       _netEqStats(false),
       _network(false),
       _rtp_rtcp(false),
-      _volumeControl(false),
       _apm(false) {
       _codec = true;
       _file = true;
       _hardware = true;
       _netEqStats = true;
       _network = true;
       _rtp_rtcp = true;
-      _volumeControl = true;
       _apm = true;
   }
 
   void DisplayStatus() const;
 
  private:
   bool _base, _codec;
   bool _file, _hardware;
-  bool _netEqStats, _network, _rtp_rtcp, _volumeControl, _apm;
+  bool _netEqStats, _network, _rtp_rtcp, _apm;
 };
 
 }  // namespace voetest
 
 #endif // WEBRTC_VOICE_ENGINE_VOE_STANDARD_TEST_H