diff --git a/media/engine/simulcast_encoder_adapter.cc b/media/engine/simulcast_encoder_adapter.cc
index 147d1fdee9..f0bc6aeda8 100644
--- a/media/engine/simulcast_encoder_adapter.cc
+++ b/media/engine/simulcast_encoder_adapter.cc
@@ -251,15 +251,6 @@ SimulcastEncoderAdapter::SimulcastEncoderAdapter(VideoEncoderFactory* factory,
                               format,
                               FieldTrialBasedConfig()) {}
 
-SimulcastEncoderAdapter::SimulcastEncoderAdapter(
-    VideoEncoderFactory* primary_factory,
-    VideoEncoderFactory* fallback_factory,
-    const SdpVideoFormat& format)
-    : SimulcastEncoderAdapter(primary_factory,
-                              fallback_factory,
-                              format,
-                              FieldTrialBasedConfig()) {}
-
 SimulcastEncoderAdapter::SimulcastEncoderAdapter(
     VideoEncoderFactory* primary_factory,
     VideoEncoderFactory* fallback_factory,
diff --git a/media/engine/simulcast_encoder_adapter.h b/media/engine/simulcast_encoder_adapter.h
index a51ab6158f..553a6a0819 100644
--- a/media/engine/simulcast_encoder_adapter.h
+++ b/media/engine/simulcast_encoder_adapter.h
@@ -47,9 +47,6 @@ class RTC_EXPORT SimulcastEncoderAdapter : public VideoEncoder {
   // `primary_factory` produces the first-choice encoders to use.
   // `fallback_factory`, if non-null, is used to create fallback encoder that
   // will be used if InitEncode() fails for the primary encoder.
-  SimulcastEncoderAdapter(VideoEncoderFactory* primary_factory,
-                          VideoEncoderFactory* fallback_factory,
-                          const SdpVideoFormat& format);
   SimulcastEncoderAdapter(VideoEncoderFactory* primary_factory,
                           VideoEncoderFactory* fallback_factory,
                           const SdpVideoFormat& format,