diff --git a/modules/audio_coding/main/acm2/audio_coding_module.cc b/modules/audio_coding/main/acm2/audio_coding_module.cc
index 7225731..d4c6f5c 100644
--- a/modules/audio_coding/main/acm2/audio_coding_module.cc
+++ b/modules/audio_coding/main/acm2/audio_coding_module.cc
@@ -98,15 +98,4 @@
   }
 }
 
-AudioCodingModule* AudioCodingModuleFactory::Create(int id) const {
-  return new acm1::AudioCodingModuleImpl(static_cast<int32_t>(id),
-                                         Clock::GetRealTimeClock());
-}
-
-AudioCodingModule* NewAudioCodingModuleFactory::Create(int id) const {
-  AudioCodingModule::Config config;
-  config.id = id;
-  return new acm2::AudioCodingModuleImpl(config);
-}
-
 }  // namespace webrtc
diff --git a/modules/audio_coding/main/interface/audio_coding_module.h b/modules/audio_coding/main/interface/audio_coding_module.h
index 9532bc8..89b3376 100644
--- a/modules/audio_coding/main/interface/audio_coding_module.h
+++ b/modules/audio_coding/main/interface/audio_coding_module.h
@@ -948,20 +948,6 @@
       AudioDecodingCallStats* call_stats) const = 0;
 };
 
-struct AudioCodingModuleFactory {
-  AudioCodingModuleFactory() {}
-  virtual ~AudioCodingModuleFactory() {}
-
-  virtual AudioCodingModule* Create(int id) const;
-};
-
-struct NewAudioCodingModuleFactory : AudioCodingModuleFactory {
-  NewAudioCodingModuleFactory() {}
-  virtual ~NewAudioCodingModuleFactory() {}
-
-  virtual AudioCodingModule* Create(int id) const;
-};
-
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_CODING_MAIN_INTERFACE_AUDIO_CODING_MODULE_H_