diff --git a/webrtc/modules/audio_processing/include/audio_processing.h b/webrtc/modules/audio_processing/include/audio_processing.h
index 6f4cc9e723..30f0d9c5d9 100644
--- a/webrtc/modules/audio_processing/include/audio_processing.h
+++ b/webrtc/modules/audio_processing/include/audio_processing.h
@@ -209,9 +209,6 @@ class AudioProcessing {
   // ensures the options are applied immediately.
   virtual void SetExtraOptions(const Config& config) = 0;
 
-  virtual int EnableExperimentalNs(bool enable) { return kNoError; }
-  virtual bool experimental_ns_enabled() const { return false; }
-
   // DEPRECATED.
   // TODO(ajm): Remove after Chromium has upgraded to using Initialize().
   virtual int set_sample_rate_hz(int rate) = 0;