diff --git a/pc/jsep_transport.h b/pc/jsep_transport.h
index 3fa6243e4c..2ba4416665 100644
--- a/pc/jsep_transport.h
+++ b/pc/jsep_transport.h
@@ -234,15 +234,6 @@ class JsepTransport : public sigslot::has_slots<> {
   // handle the signal and update the aggregate transport states.
   sigslot::signal<> SignalRtcpMuxActive;
 
-  // Signals that a data channel transport was negotiated and may be used to
-  // send data.  The first parameter is |this|.  The second parameter is the
-  // transport that was negotiated, or null if negotiation rejected the data
-  // channel transport.  The third parameter (bool) indicates whether the
-  // negotiation was provisional or final.  If true, it is provisional, if
-  // false, it is final.
-  sigslot::signal2<JsepTransport*, webrtc::DataChannelTransportInterface*>
-      SignalDataChannelTransportNegotiated;
-
   // TODO(deadbeef): The methods below are only public for testing. Should make
   // them utility functions or objects so they can be tested independently from
   // this class.
diff --git a/pc/jsep_transport_controller.cc b/pc/jsep_transport_controller.cc
index dbe7435c02..71dd8acc21 100644
--- a/pc/jsep_transport_controller.cc
+++ b/pc/jsep_transport_controller.cc
@@ -1026,8 +1026,6 @@ RTCError JsepTransportController::MaybeCreateJsepTransport(
 
   jsep_transport->SignalRtcpMuxActive.connect(
       this, &JsepTransportController::UpdateAggregateStates_n);
-  jsep_transport->SignalDataChannelTransportNegotiated.connect(
-      this, &JsepTransportController::OnDataChannelTransportNegotiated_n);
   SetTransportForMid(content_info.name, jsep_transport.get());
 
   jsep_transports_by_name_[content_info.name] = std::move(jsep_transport);
@@ -1208,18 +1206,6 @@ void JsepTransportController::OnTransportStateChanged_n(
   UpdateAggregateStates_n();
 }
 
-void JsepTransportController::OnDataChannelTransportNegotiated_n(
-    cricket::JsepTransport* transport,
-    DataChannelTransportInterface* data_channel_transport) {
-  for (const auto& it : mid_to_transport_) {
-    if (it.second == transport) {
-      config_.transport_observer->OnTransportChanged(
-          it.first, transport->rtp_transport(), transport->RtpDtlsTransport(),
-          data_channel_transport);
-    }
-  }
-}
-
 void JsepTransportController::UpdateAggregateStates_n() {
   RTC_DCHECK(network_thread_->IsCurrent());
 
diff --git a/pc/jsep_transport_controller.h b/pc/jsep_transport_controller.h
index 250501fd05..d95b475969 100644
--- a/pc/jsep_transport_controller.h
+++ b/pc/jsep_transport_controller.h
@@ -346,10 +346,6 @@ class JsepTransportController : public sigslot::has_slots<> {
   void OnTransportStateChanged_n(cricket::IceTransportInternal* transport);
   void OnTransportCandidatePairChanged_n(
       const cricket::CandidatePairChangeEvent& event);
-  void OnDataChannelTransportNegotiated_n(
-      cricket::JsepTransport* transport,
-      DataChannelTransportInterface* data_channel_transport);
-
   void UpdateAggregateStates_n();
 
   void OnRtcpPacketReceived_n(rtc::CopyOnWriteBuffer* packet,