diff --git a/webrtc/video/vie_channel.cc b/webrtc/video/vie_channel.cc
index 6d2c441f99..19132b85d1 100644
--- a/webrtc/video/vie_channel.cc
+++ b/webrtc/video/vie_channel.cc
@@ -35,7 +35,6 @@
 
 namespace webrtc {
 
-static const int kMaxTargetDelayMs = 10000;
 const int kMinSendSidePacketHistorySize = 600;
 const int kMaxPacketAgeToNack = 450;
 const int kMaxNackListSize = 250;
@@ -467,26 +466,6 @@ bool ViEChannel::IsSendingFecEnabled() {
   return false;
 }
 
-int ViEChannel::SetSenderBufferingMode(int target_delay_ms) {
-  if ((target_delay_ms < 0) || (target_delay_ms > kMaxTargetDelayMs)) {
-    LOG(LS_ERROR) << "Invalid send buffer value.";
-    return -1;
-  }
-  if (target_delay_ms == 0) {
-    // Real-time mode.
-    nack_history_size_sender_ = kMinSendSidePacketHistorySize;
-  } else {
-    nack_history_size_sender_ = GetRequiredNackListSize(target_delay_ms);
-    // Don't allow a number lower than the default value.
-    if (nack_history_size_sender_ < kMinSendSidePacketHistorySize) {
-      nack_history_size_sender_ = kMinSendSidePacketHistorySize;
-    }
-  }
-  for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_)
-    rtp_rtcp->SetStorePacketsStatus(true, nack_history_size_sender_);
-  return 0;
-}
-
 int ViEChannel::GetRequiredNackListSize(int target_delay_ms) {
   // The max size of the nack list should be large enough to accommodate the
   // the number of packets (frames) resulting from the increased delay.
diff --git a/webrtc/video/vie_channel.h b/webrtc/video/vie_channel.h
index ba4cc1fd5b..228b50e5d4 100644
--- a/webrtc/video/vie_channel.h
+++ b/webrtc/video/vie_channel.h
@@ -90,7 +90,6 @@ class ViEChannel : public VCMFrameTypeCallback,
                          int payload_type_red,
                          int payload_type_fec);
   bool IsSendingFecEnabled();
-  int SetSenderBufferingMode(int target_delay_ms);
   int SetSendTimestampOffsetStatus(bool enable, int id);
   int SetSendAbsoluteSendTimeStatus(bool enable, int id);
   int SetSendVideoRotationStatus(bool enable, int id);
diff --git a/webrtc/video/vie_encoder.cc b/webrtc/video/vie_encoder.cc
index 20cfaffb62..13d52b43bc 100644
--- a/webrtc/video/vie_encoder.cc
+++ b/webrtc/video/vie_encoder.cc
@@ -421,22 +421,6 @@ void ViEEncoder::SetProtectionMethod(bool nack, bool fec) {
   vcm_->SetVideoProtection(protection_mode, true);
 }
 
-void ViEEncoder::SetSenderBufferingMode(int target_delay_ms) {
-  {
-    rtc::CritScope lock(&data_cs_);
-    target_delay_ms_ = target_delay_ms;
-  }
-  if (target_delay_ms > 0) {
-    // Disable external frame-droppers.
-    vcm_->EnableFrameDropper(false);
-    vp_->EnableTemporalDecimation(false);
-  } else {
-    // Real-time mode - enable frame droppers.
-    vp_->EnableTemporalDecimation(true);
-    vcm_->EnableFrameDropper(true);
-  }
-}
-
 void ViEEncoder::OnSetRates(uint32_t bitrate_bps, int framerate) {
   if (stats_proxy_)
     stats_proxy_->OnSetRates(bitrate_bps, framerate);
diff --git a/webrtc/video/vie_encoder.h b/webrtc/video/vie_encoder.h
index 22457ef429..0456d2a3e4 100644
--- a/webrtc/video/vie_encoder.h
+++ b/webrtc/video/vie_encoder.h
@@ -94,9 +94,6 @@ class ViEEncoder : public RtcpIntraFrameObserver,
   // this class and set it on construction there.
   void SetProtectionMethod(bool nack, bool fec);
 
-  // Buffering mode.
-  void SetSenderBufferingMode(int target_delay_ms);
-
   // Implements VideoEncoderRateObserver.
   void OnSetRates(uint32_t bitrate_bps, int framerate) override;