diff --git a/webrtc/test/direct_transport.cc b/webrtc/test/direct_transport.cc
index e955c08d35..35f3f92bfc 100644
--- a/webrtc/test/direct_transport.cc
+++ b/webrtc/test/direct_transport.cc
@@ -17,25 +17,6 @@
 namespace webrtc {
 namespace test {
 
-DirectTransport::DirectTransport(
-    Call* send_call,
-    const std::map<uint8_t, MediaType>& payload_type_map)
-    : DirectTransport(FakeNetworkPipe::Config(), send_call, payload_type_map) {}
-
-DirectTransport::DirectTransport(
-    const FakeNetworkPipe::Config& config,
-    Call* send_call,
-    const std::map<uint8_t, MediaType>& payload_type_map)
-    : DirectTransport(
-          config,
-          send_call,
-          std::unique_ptr<Demuxer>(new DemuxerImpl(payload_type_map))) {}
-
-DirectTransport::DirectTransport(const FakeNetworkPipe::Config& config,
-                                 Call* send_call,
-                                 std::unique_ptr<Demuxer> demuxer)
-    : DirectTransport(nullptr, config, send_call, std::move(demuxer)) {}
-
 DirectTransport::DirectTransport(
     SingleThreadedTaskQueueForTesting* task_queue,
     Call* send_call,
@@ -66,15 +47,7 @@ DirectTransport::DirectTransport(SingleThreadedTaskQueueForTesting* task_queue,
       clock_(Clock::GetRealTimeClock()),
       task_queue_(task_queue),
       fake_network_(clock_, config, std::move(demuxer)) {
-  // TODO(eladalon): When the deprecated ctors are removed, this check
-  // can be restored. https://bugs.chromium.org/p/webrtc/issues/detail?id=8125
-  // RTC_DCHECK(task_queue);
-  if (!task_queue) {
-    deprecated_task_queue_ =
-        rtc::MakeUnique<SingleThreadedTaskQueueForTesting>("deprecated_queue");
-    task_queue_ = deprecated_task_queue_.get();
-  }
-
+  RTC_DCHECK(task_queue);
   if (send_call_) {
     send_call_->SignalChannelNetworkState(MediaType::AUDIO, kNetworkUp);
     send_call_->SignalChannelNetworkState(MediaType::VIDEO, kNetworkUp);
@@ -124,22 +97,6 @@ int DirectTransport::GetAverageDelayMs() {
   return fake_network_.AverageDelay();
 }
 
-DirectTransport::ForceDemuxer::ForceDemuxer(MediaType media_type)
-    : media_type_(media_type) {}
-
-void DirectTransport::ForceDemuxer::SetReceiver(PacketReceiver* receiver) {
-  packet_receiver_ = receiver;
-}
-
-void DirectTransport::ForceDemuxer::DeliverPacket(
-    const NetworkPacket* packet,
-    const PacketTime& packet_time) {
-  if (!packet_receiver_)
-    return;
-  packet_receiver_->DeliverPacket(media_type_, packet->data(),
-                                  packet->data_length(), packet_time);
-}
-
 void DirectTransport::SendPackets() {
   RTC_DCHECK_CALLED_SEQUENTIALLY(&sequence_checker_);
 
diff --git a/webrtc/test/direct_transport.h b/webrtc/test/direct_transport.h
index 4be00a77e0..eee94bec1b 100644
--- a/webrtc/test/direct_transport.h
+++ b/webrtc/test/direct_transport.h
@@ -32,25 +32,6 @@ namespace test {
 // same task-queue - the one that's passed in via the constructor.
 class DirectTransport : public Transport {
  public:
-  RTC_DEPRECATED DirectTransport(
-      Call* send_call,
-      const std::map<uint8_t, MediaType>& payload_type_map);
-  RTC_DEPRECATED DirectTransport(
-      const FakeNetworkPipe::Config& config,
-      Call* send_call,
-      const std::map<uint8_t, MediaType>& payload_type_map);
-  RTC_DEPRECATED DirectTransport(
-      const FakeNetworkPipe::Config& config,
-      Call* send_call,
-      std::unique_ptr<Demuxer> demuxer);
-
-  // This deprecated variant always uses MediaType::VIDEO.
-  RTC_DEPRECATED explicit DirectTransport(Call* send_call)
-      : DirectTransport(
-            FakeNetworkPipe::Config(),
-            send_call,
-            std::unique_ptr<Demuxer>(new ForceDemuxer(MediaType::VIDEO))) {}
-
   DirectTransport(SingleThreadedTaskQueueForTesting* task_queue,
                   Call* send_call,
                   const std::map<uint8_t, MediaType>& payload_type_map);
@@ -82,21 +63,6 @@ class DirectTransport : public Transport {
   int GetAverageDelayMs();
 
  private:
-  // TODO(minyue): remove when the deprecated ctors of DirectTransport that
-  // create ForceDemuxer are removed.
-  class ForceDemuxer : public Demuxer {
-   public:
-    explicit ForceDemuxer(MediaType media_type);
-    void SetReceiver(PacketReceiver* receiver) override;
-    void DeliverPacket(const NetworkPacket* packet,
-                       const PacketTime& packet_time) override;
-
-   private:
-    const MediaType media_type_;
-    PacketReceiver* packet_receiver_;
-    RTC_DISALLOW_COPY_AND_ASSIGN(ForceDemuxer);
-  };
-
   void SendPackets();
 
   Call* const send_call_;
@@ -111,12 +77,6 @@ class DirectTransport : public Transport {
   FakeNetworkPipe fake_network_;
 
   rtc::SequencedTaskChecker sequence_checker_;
-
-  // TODO(eladalon): https://bugs.chromium.org/p/webrtc/issues/detail?id=8125
-  // Deprecated versions of the ctor don't get the task queue passed in from
-  // outside. We'll create one locally for them. This is deprecated, and will
-  // be removed as soon as the need for those ctors is removed.
-  std::unique_ptr<SingleThreadedTaskQueueForTesting> deprecated_task_queue_;
 };
 }  // namespace test
 }  // namespace webrtc