diff --git a/api/media_transport_interface.cc b/api/media_transport_interface.cc
index abd9861652..c3f3d19063 100644
--- a/api/media_transport_interface.cc
+++ b/api/media_transport_interface.cc
@@ -33,16 +33,6 @@ MediaTransportSettings::~MediaTransportSettings() = default;
 SendDataParams::SendDataParams() = default;
 SendDataParams::SendDataParams(const SendDataParams&) = default;
 
-RTCErrorOr<std::unique_ptr<MediaTransportInterface>>
-MediaTransportFactory::CreateMediaTransport(
-    rtc::PacketTransportInternal* packet_transport,
-    rtc::Thread* network_thread,
-    bool is_caller) {
-  MediaTransportSettings settings;
-  settings.is_caller = is_caller;
-  return CreateMediaTransport(packet_transport, network_thread, settings);
-}
-
 RTCErrorOr<std::unique_ptr<MediaTransportInterface>>
 MediaTransportFactory::CreateMediaTransport(
     rtc::PacketTransportInternal* packet_transport,
diff --git a/api/media_transport_interface.h b/api/media_transport_interface.h
index edbd3b1da0..0b7584505e 100644
--- a/api/media_transport_interface.h
+++ b/api/media_transport_interface.h
@@ -318,17 +318,6 @@ class MediaTransportFactory {
   // - Does not take ownership of packet_transport or network_thread.
   // - Does not support group calls, in 1:1 call one side must set
   //   is_caller = true and another is_caller = false.
-  // TODO(bugs.webrtc.org/9938) This constructor will be removed and replaced
-  // with the one below.
-  virtual RTCErrorOr<std::unique_ptr<MediaTransportInterface>>
-  CreateMediaTransport(rtc::PacketTransportInternal* packet_transport,
-                       rtc::Thread* network_thread,
-                       bool is_caller);
-
-  // Creates media transport.
-  // - Does not take ownership of packet_transport or network_thread.
-  // TODO(bugs.webrtc.org/9938): remove default implementation once all children
-  // override it.
   virtual RTCErrorOr<std::unique_ptr<MediaTransportInterface>>
   CreateMediaTransport(rtc::PacketTransportInternal* packet_transport,
                        rtc::Thread* network_thread,
diff --git a/api/test/fake_media_transport.h b/api/test/fake_media_transport.h
index 86c0b76b59..16cd1bad87 100644
--- a/api/test/fake_media_transport.h
+++ b/api/test/fake_media_transport.h
@@ -110,15 +110,6 @@ class FakeMediaTransportFactory : public MediaTransportFactory {
   FakeMediaTransportFactory() = default;
   ~FakeMediaTransportFactory() = default;
 
-  RTCErrorOr<std::unique_ptr<MediaTransportInterface>> CreateMediaTransport(
-      rtc::PacketTransportInternal* packet_transport,
-      rtc::Thread* network_thread,
-      bool is_caller) override {
-    MediaTransportSettings settings;
-    settings.is_caller = is_caller;
-    return CreateMediaTransport(packet_transport, network_thread, settings);
-  }
-
   RTCErrorOr<std::unique_ptr<MediaTransportInterface>> CreateMediaTransport(
       rtc::PacketTransportInternal* packet_transport,
       rtc::Thread* network_thread,
diff --git a/pc/channel_manager_unittest.cc b/pc/channel_manager_unittest.cc
index 36b798181b..03c68ea0d2 100644
--- a/pc/channel_manager_unittest.cc
+++ b/pc/channel_manager_unittest.cc
@@ -69,10 +69,12 @@ class ChannelManagerTest : public testing::Test {
 
   std::unique_ptr<webrtc::MediaTransportInterface> CreateMediaTransport(
       rtc::PacketTransportInternal* packet_transport) {
+    webrtc::MediaTransportSettings settings;
+    settings.is_caller = true;
     auto media_transport_result =
-        fake_media_transport_factory_.CreateMediaTransport(packet_transport,
-                                                           network_.get(),
-                                                           /*is_caller=*/true);
+        fake_media_transport_factory_.CreateMediaTransport(
+            packet_transport, network_.get(),
+            /*is_caller=*/settings);
     RTC_CHECK(media_transport_result.ok());
     return media_transport_result.MoveValue();
   }