Removing calls to deprecated method UpdateHistogramsOnCallEnd

Bug: webrtc:5298
Change-Id: Ie51de26cfe002d087ebc919586e9b3f75aa35ced
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1594530Reviewed-by: Olga Sharonova <olka@chromium.org>
Commit-Queue: Per Åhgren <peah@chromium.org>
Cr-Commit-Position: refs/heads/master@{#662602}

content/renderer/media/stream/media_stream_audio_processor.cc

@@ -378,7 +378,6 @@ void MediaStreamAudioProcessor::Stop() {
   if (!audio_processing_.get())
     return;
 
-  audio_processing_.get()->UpdateHistogramsOnCallEnd();
   blink::StopEchoCancellationDump(audio_processing_.get());
   worker_queue_.reset(nullptr);
 

media/webrtc/audio_processor.cc

@@ -75,8 +75,6 @@ AudioProcessor::AudioProcessor(const AudioParameters& audio_parameters,
 
 AudioProcessor::~AudioProcessor() {
   StopEchoCancellationDump();
-  if (audio_processing_)
-    audio_processing_->UpdateHistogramsOnCallEnd();
 }
 
 // Process the audio from source and return a pointer to the processed data.