diff --git a/modules/audio_coding/neteq/include/neteq.h b/modules/audio_coding/neteq/include/neteq.h
index ce5e7caa9e..fdb73c5afa 100644
--- a/modules/audio_coding/neteq/include/neteq.h
+++ b/modules/audio_coding/neteq/include/neteq.h
@@ -96,7 +96,7 @@ class NetEq {
     bool for_test_no_time_stretching = false;  // Use only for testing.
   };
 
-  enum ReturnCodes { kOK = 0, kFail = -1, kNotImplemented = -2 };
+  enum ReturnCodes { kOK = 0, kFail = -1 };
 
   // Creates a new NetEq object, with parameters set in |config|. The |config|
   // object will only have to be valid for the duration of the call to this
@@ -180,9 +180,6 @@ class NetEq {
   // the |max_delay_ms| value in the NetEq::Config struct.
   virtual bool SetMaximumDelay(int delay_ms) = 0;
 
-  // Not implemented.
-  virtual int SetTargetDelay() = 0;
-
   // Returns the current target delay in ms. This includes any extra delay
   // requested through SetMinimumDelay.
   virtual int TargetDelayMs() const = 0;
@@ -235,12 +232,6 @@ class NetEq {
   virtual absl::optional<SdpAudioFormat> GetDecoderFormat(
       int payload_type) const = 0;
 
-  // Not implemented.
-  virtual int SetTargetNumberOfChannels() = 0;
-
-  // Not implemented.
-  virtual int SetTargetSampleRate() = 0;
-
   // Flushes both the packet buffer and the sync buffer.
   virtual void FlushBuffers() = 0;
 
diff --git a/modules/audio_coding/neteq/neteq_impl.cc b/modules/audio_coding/neteq/neteq_impl.cc
index c9edbcef99..ddcd221dc5 100644
--- a/modules/audio_coding/neteq/neteq_impl.cc
+++ b/modules/audio_coding/neteq/neteq_impl.cc
@@ -307,10 +307,6 @@ bool NetEqImpl::SetMaximumDelay(int delay_ms) {
   return false;
 }
 
-int NetEqImpl::SetTargetDelay() {
-  return kNotImplemented;
-}
-
 int NetEqImpl::TargetDelayMs() const {
   rtc::CritScope lock(&crit_sect_);
   RTC_DCHECK(delay_manager_.get());
@@ -448,14 +444,6 @@ absl::optional<SdpAudioFormat> NetEqImpl::GetDecoderFormat(
   return di->GetFormat();
 }
 
-int NetEqImpl::SetTargetNumberOfChannels() {
-  return kNotImplemented;
-}
-
-int NetEqImpl::SetTargetSampleRate() {
-  return kNotImplemented;
-}
-
 void NetEqImpl::FlushBuffers() {
   rtc::CritScope lock(&crit_sect_);
   RTC_LOG(LS_VERBOSE) << "FlushBuffers";
diff --git a/modules/audio_coding/neteq/neteq_impl.h b/modules/audio_coding/neteq/neteq_impl.h
index 32af294274..68fdf3cc96 100644
--- a/modules/audio_coding/neteq/neteq_impl.h
+++ b/modules/audio_coding/neteq/neteq_impl.h
@@ -157,8 +157,6 @@ class NetEqImpl : public webrtc::NetEq {
 
   bool SetMaximumDelay(int delay_ms) override;
 
-  int SetTargetDelay() override;
-
   int TargetDelayMs() const override;
 
   int CurrentDelayMs() const override;
@@ -194,10 +192,6 @@ class NetEqImpl : public webrtc::NetEq {
   absl::optional<SdpAudioFormat> GetDecoderFormat(
       int payload_type) const override;
 
-  int SetTargetNumberOfChannels() override;
-
-  int SetTargetSampleRate() override;
-
   // Flushes both the packet buffer and the sync buffer.
   void FlushBuffers() override;