Removes usage of hardware AGC and any related APIs on Android

webrtc/modules/audio_device/android/audio_record_jni.h

 /*
  *  Copyright (c) 2013 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 37 matching lines @@
   class JavaAudioRecord {
    public:
     JavaAudioRecord(NativeRegistration* native_registration,
                    std::unique_ptr<GlobalRef> audio_track);
     ~JavaAudioRecord();
 
     int InitRecording(int sample_rate, size_t channels);
     bool StartRecording();
     bool StopRecording();
     bool EnableBuiltInAEC(bool enable);
-    bool EnableBuiltInAGC(bool enable);
     bool EnableBuiltInNS(bool enable);
 
    private:
     std::unique_ptr<GlobalRef> audio_record_;
     jmethodID init_recording_;
     jmethodID start_recording_;
     jmethodID stop_recording_;
     jmethodID enable_built_in_aec_;
-    jmethodID enable_built_in_agc_;
     jmethodID enable_built_in_ns_;
   };
 
   explicit AudioRecordJni(AudioManager* audio_manager);
   ~AudioRecordJni();
 
   int32_t Init();
   int32_t Terminate();
 
   int32_t InitRecording();
@@ skipping 78 matching lines @@
   bool recording_;
 
   // Raw pointer handle provided to us in AttachAudioBuffer(). Owned by the
   // AudioDeviceModuleImpl class and called by AudioDeviceModule::Create().
   AudioDeviceBuffer* audio_device_buffer_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_AUDIO_RECORD_JNI_H_