diff --git a/api/peer_connection_interface.h b/api/peer_connection_interface.h
index f626b95000..7cb0e8f4fd 100644
--- a/api/peer_connection_interface.h
+++ b/api/peer_connection_interface.h
@@ -1402,17 +1402,14 @@ class PeerConnectionFactoryInterface : public rtc::RefCountInterface {
   ~PeerConnectionFactoryInterface() override = default;
 };
 
-// This is a lower-level version of the CreatePeerConnectionFactory functions
-// above. It's implemented in the "peerconnection" build target, whereas the
-// above methods are only implemented in the broader "libjingle_peerconnection"
-// build target, which pulls in the implementations of every module webrtc may
-// use.
+// CreateModularPeerConnectionFactory is implemented in the "peerconnection"
+// build target, which doesn't pull in the implementations of every module
+// webrtc may use.
 //
 // If an application knows it will only require certain modules, it can reduce
 // webrtc's impact on its binary size by depending only on the "peerconnection"
 // target and the modules the application requires, using
-// CreateModularPeerConnectionFactory instead of one of the
-// CreatePeerConnectionFactory methods above. For example, if an application
+// CreateModularPeerConnectionFactory. For example, if an application
 // only uses WebRTC for audio, it can pass in null pointers for the
 // video-specific interfaces, and omit the corresponding modules from its
 // build.
@@ -1421,42 +1418,6 @@ class PeerConnectionFactoryInterface : public rtc::RefCountInterface {
 // will create the necessary thread internally. If |signaling_thread| is null,
 // the PeerConnectionFactory will use the thread on which this method is called
 // as the signaling thread, wrapping it in an rtc::Thread object if needed.
-//
-// If non-null, a reference is added to |default_adm|, and ownership of
-// |video_encoder_factory| and |video_decoder_factory| is transferred to the
-// returned factory.
-//
-// If |audio_mixer| is null, an internal audio mixer will be created and used.
-//
-// TODO(deadbeef): Use rtc::scoped_refptr<> and std::unique_ptr<> to make this
-// ownership transfer and ref counting more obvious.
-//
-// TODO(deadbeef): Encapsulate these modules in a struct, so that when a new
-// module is inevitably exposed, we can just add a field to the struct instead
-// of adding a whole new CreateModularPeerConnectionFactory overload.
-rtc::scoped_refptr<PeerConnectionFactoryInterface>
-CreateModularPeerConnectionFactory(
-    rtc::Thread* network_thread,
-    rtc::Thread* worker_thread,
-    rtc::Thread* signaling_thread,
-    std::unique_ptr<cricket::MediaEngineInterface> media_engine,
-    std::unique_ptr<CallFactoryInterface> call_factory,
-    std::unique_ptr<RtcEventLogFactoryInterface> event_log_factory);
-
-rtc::scoped_refptr<PeerConnectionFactoryInterface>
-CreateModularPeerConnectionFactory(
-    rtc::Thread* network_thread,
-    rtc::Thread* worker_thread,
-    rtc::Thread* signaling_thread,
-    std::unique_ptr<cricket::MediaEngineInterface> media_engine,
-    std::unique_ptr<CallFactoryInterface> call_factory,
-    std::unique_ptr<RtcEventLogFactoryInterface> event_log_factory,
-    std::unique_ptr<FecControllerFactoryInterface> fec_controller_factory,
-    std::unique_ptr<NetworkStatePredictorFactoryInterface>
-        network_state_predictor_factory,
-    std::unique_ptr<NetworkControllerFactoryInterface>
-        network_controller_factory = nullptr);
-
 rtc::scoped_refptr<PeerConnectionFactoryInterface>
 CreateModularPeerConnectionFactory(
     PeerConnectionFactoryDependencies dependencies);
diff --git a/pc/peer_connection_factory.cc b/pc/peer_connection_factory.cc
index ce1797b2f2..b2b12b0dbd 100644
--- a/pc/peer_connection_factory.cc
+++ b/pc/peer_connection_factory.cc
@@ -41,52 +41,6 @@
 
 namespace webrtc {
 
-rtc::scoped_refptr<PeerConnectionFactoryInterface>
-CreateModularPeerConnectionFactory(
-    rtc::Thread* network_thread,
-    rtc::Thread* worker_thread,
-    rtc::Thread* signaling_thread,
-    std::unique_ptr<cricket::MediaEngineInterface> media_engine,
-    std::unique_ptr<CallFactoryInterface> call_factory,
-    std::unique_ptr<RtcEventLogFactoryInterface> event_log_factory) {
-  PeerConnectionFactoryDependencies dependencies;
-  dependencies.network_thread = network_thread;
-  dependencies.worker_thread = worker_thread;
-  dependencies.signaling_thread = signaling_thread;
-  dependencies.media_engine = std::move(media_engine);
-  dependencies.call_factory = std::move(call_factory);
-  dependencies.event_log_factory = std::move(event_log_factory);
-  return CreateModularPeerConnectionFactory(std::move(dependencies));
-}
-
-rtc::scoped_refptr<PeerConnectionFactoryInterface>
-CreateModularPeerConnectionFactory(
-    rtc::Thread* network_thread,
-    rtc::Thread* worker_thread,
-    rtc::Thread* signaling_thread,
-    std::unique_ptr<cricket::MediaEngineInterface> media_engine,
-    std::unique_ptr<CallFactoryInterface> call_factory,
-    std::unique_ptr<RtcEventLogFactoryInterface> event_log_factory,
-    std::unique_ptr<FecControllerFactoryInterface> fec_controller_factory,
-    std::unique_ptr<NetworkStatePredictorFactoryInterface>
-        network_state_predictor_factory,
-    std::unique_ptr<NetworkControllerFactoryInterface>
-        network_controller_factory) {
-  PeerConnectionFactoryDependencies dependencies;
-  dependencies.network_thread = network_thread;
-  dependencies.worker_thread = worker_thread;
-  dependencies.signaling_thread = signaling_thread;
-  dependencies.media_engine = std::move(media_engine);
-  dependencies.call_factory = std::move(call_factory);
-  dependencies.event_log_factory = std::move(event_log_factory);
-  dependencies.fec_controller_factory = std::move(fec_controller_factory);
-  dependencies.network_state_predictor_factory =
-      std::move(network_state_predictor_factory);
-  dependencies.network_controller_factory =
-      std::move(network_controller_factory);
-  return CreateModularPeerConnectionFactory(std::move(dependencies));
-}
-
 rtc::scoped_refptr<PeerConnectionFactoryInterface>
 CreateModularPeerConnectionFactory(
     PeerConnectionFactoryDependencies dependencies) {