Removes unused WaveOut APIs from ADM

webrtc/modules/audio_device/dummy/file_audio_device.h

 /*
  *  Copyright (c) 2014 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 72 matching lines @@
   int32_t StopPlayout() override;
   bool Playing() const override;
   int32_t StartRecording() override;
   int32_t StopRecording() override;
   bool Recording() const override;
 
   // Microphone Automatic Gain Control (AGC)
   int32_t SetAGC(bool enable) override;
   bool AGC() const override;
 
-  // Volume control based on the Windows Wave API (Windows only)
-  int32_t SetWaveOutVolume(uint16_t volumeLeft, uint16_t volumeRight) override;
-  int32_t WaveOutVolume(uint16_t& volumeLeft,
-                        uint16_t& volumeRight) const override;
-
   // Audio mixer initialization
   int32_t InitSpeaker() override;
   bool SpeakerIsInitialized() const override;
   int32_t InitMicrophone() override;
   bool MicrophoneIsInitialized() const override;
 
   // Speaker volume controls
   int32_t SpeakerVolumeIsAvailable(bool& available) override;
   int32_t SetSpeakerVolume(uint32_t volume) override;
   int32_t SpeakerVolume(uint32_t& volume) const override;
@@ skipping 85 matching lines @@
 
   FileWrapper& _outputFile;
   FileWrapper& _inputFile;
   std::string _outputFilename;
   std::string _inputFilename;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_AUDIO_DEVICE_FILE_AUDIO_DEVICE_H