diff --git a/video/video_stream_decoder.cc b/video/video_stream_decoder.cc
index b27a52ea89..0388b9c9da 100644
--- a/video/video_stream_decoder.cc
+++ b/video/video_stream_decoder.cc
@@ -35,8 +35,7 @@ VideoStreamDecoder::VideoStreamDecoder(
     rtc::VideoSinkInterface<VideoFrame>* incoming_video_stream)
     : video_receiver_(video_receiver),
       receive_stats_callback_(receive_statistics_proxy),
-      incoming_video_stream_(incoming_video_stream),
-      last_rtt_ms_(0) {
+      incoming_video_stream_(incoming_video_stream) {
   RTC_DCHECK(video_receiver_);
 
   static const int kMaxPacketAgeToNack = 450;
@@ -128,8 +127,5 @@ void VideoStreamDecoder::OnCompleteFrame(bool is_keyframe,
 
 void VideoStreamDecoder::OnRttUpdate(int64_t avg_rtt_ms, int64_t max_rtt_ms) {
   video_receiver_->SetReceiveChannelParameters(max_rtt_ms);
-
-  rtc::CritScope lock(&crit_);
-  last_rtt_ms_ = avg_rtt_ms;
 }
 }  // namespace webrtc
diff --git a/video/video_stream_decoder.h b/video/video_stream_decoder.h
index 812f47b6a3..3cc6e71b55 100644
--- a/video/video_stream_decoder.h
+++ b/video/video_stream_decoder.h
@@ -96,8 +96,6 @@ class VideoStreamDecoder : public VCMReceiveCallback,
 
   ReceiveStatisticsProxy* const receive_stats_callback_;
   rtc::VideoSinkInterface<VideoFrame>* const incoming_video_stream_;
-
-  int64_t last_rtt_ms_ RTC_GUARDED_BY(crit_);
 };
 
 }  // namespace webrtc