Revert of Added functionality for specifying the initial signal level to use for the gain estimation

webrtc/modules/audio_processing/level_controller/gain_selector.h

 /*
  *  Copyright (c) 2016 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.
  */
 
 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_GAIN_SELECTOR_H_
 #define WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_GAIN_SELECTOR_H_
 
 #include "webrtc/base/constructormagic.h"
 
 #include "webrtc/modules/audio_processing/level_controller/signal_classifier.h"
 
 namespace webrtc {
 
 class GainSelector {
  public:
   GainSelector();
   void Initialize(int sample_rate_hz);
   float GetNewGain(float peak_level,
                    float noise_energy,
                    float saturating_gain,
-                   bool gain_jumpstart,
                    SignalClassifier::SignalType signal_type);
 
  private:
   float gain_;
   size_t frame_length_;
   int highly_nonstationary_signal_hold_counter_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(GainSelector);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_GAIN_SELECTOR_H_