Revert of Introduced new scheme for controlling the functionality inside the audio processing module

webrtc/media/engine/webrtcvoiceengine.cc

Index: webrtc/media/engine/webrtcvoiceengine.cc
diff --git a/webrtc/media/engine/webrtcvoiceengine.cc b/webrtc/media/engine/webrtcvoiceengine.cc
index 43436128fd3cf79861d29752c5cda1fe36fe599e..29924114b4ff57cf6c9cfc4fa00f705023163f5d 100644
--- a/webrtc/media/engine/webrtcvoiceengine.cc
+++ b/webrtc/media/engine/webrtcvoiceengine.cc
@@ -868,9 +868,8 @@
 
   LOG(LS_INFO) << "Level control: "
                << (!!level_control_ ? *level_control_ : -1);
-  webrtc::AudioProcessing::Config apm_config;
   if (level_control_) {
-    apm_config.level_controller.enabled = *level_control_;
+    config.Set<webrtc::LevelControl>(new webrtc::LevelControl(*level_control_));
   }
 
   // We check audioproc for the benefit of tests, since FakeWebRtcVoiceEngine
@@ -878,7 +877,6 @@
   webrtc::AudioProcessing* audioproc = voe_wrapper_->base()->audio_processing();
   if (audioproc) {
     audioproc->SetExtraOptions(config);
-    audioproc->ApplyConfig(apm_config);
   }
 
   if (options.recording_sample_rate) {