Remove only-for-test interface method GetLocalSsrc().

Bug: none
Change-Id: I88f0b0ca7c7146ec1a2ac2e7130925287c0344b3
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/385981
Auto-Submit: Fredrik Solenberg <solenberg@webrtc.org>
Commit-Queue: Harald Alvestrand <hta@webrtc.org>
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#44366}
diff --git a/audio/audio_receive_stream.cc b/audio/audio_receive_stream.cc
index 7be1580..06d37f3 100644
--- a/audio/audio_receive_stream.cc
+++ b/audio/audio_receive_stream.cc
@@ -448,7 +448,6 @@
 
 uint32_t AudioReceiveStreamImpl::local_ssrc() const {
   RTC_DCHECK_RUN_ON(&packet_sequence_checker_);
-  RTC_DCHECK_EQ(config_.rtp.local_ssrc, channel_receive_->GetLocalSsrc());
   return config_.rtp.local_ssrc;
 }
 
diff --git a/audio/audio_receive_stream_unittest.cc b/audio/audio_receive_stream_unittest.cc
index d6301b1..a60f503 100644
--- a/audio/audio_receive_stream_unittest.cc
+++ b/audio/audio_receive_stream_unittest.cc
@@ -37,6 +37,7 @@
 #include "modules/pacing/packet_router.h"
 #include "modules/rtp_rtcp/source/byte_io.h"
 #include "rtc_base/time_utils.h"
+#include "test/gmock.h"
 #include "test/gtest.h"
 #include "test/mock_audio_decoder_factory.h"
 #include "test/mock_transport.h"
@@ -142,8 +143,6 @@
         .WillRepeatedly(Invoke([](const std::map<int, SdpAudioFormat>& codecs) {
           EXPECT_THAT(codecs, ::testing::IsEmpty());
         }));
-    EXPECT_CALL(*channel_receive_, GetLocalSsrc())
-        .WillRepeatedly(Return(kLocalSsrc));
 
     stream_config_.rtp.local_ssrc = kLocalSsrc;
     stream_config_.rtp.remote_ssrc = kRemoteSsrc;
diff --git a/audio/channel_receive.cc b/audio/channel_receive.cc
index 6d32265..36363b1 100644
--- a/audio/channel_receive.cc
+++ b/audio/channel_receive.cc
@@ -212,7 +212,6 @@
                              frame_decryptor) override;
 
   void OnLocalSsrcChange(uint32_t local_ssrc) override;
-  uint32_t GetLocalSsrc() const override;
 
   void RtcpPacketTypesCounterUpdated(
       uint32_t ssrc,
@@ -967,11 +966,6 @@
   rtp_rtcp_->SetLocalSsrc(local_ssrc);
 }
 
-uint32_t ChannelReceive::GetLocalSsrc() const {
-  RTC_DCHECK_RUN_ON(&worker_thread_checker_);
-  return rtp_rtcp_->local_media_ssrc();
-}
-
 NetworkStatistics ChannelReceive::GetNetworkStatistics(
     bool get_and_clear_legacy_stats) const {
   RTC_DCHECK_RUN_ON(&worker_thread_checker_);
diff --git a/audio/channel_receive.h b/audio/channel_receive.h
index 8a5481b..6b9d816 100644
--- a/audio/channel_receive.h
+++ b/audio/channel_receive.h
@@ -163,7 +163,6 @@
       rtc::scoped_refptr<webrtc::FrameDecryptorInterface> frame_decryptor) = 0;
 
   virtual void OnLocalSsrcChange(uint32_t local_ssrc) = 0;
-  virtual uint32_t GetLocalSsrc() const = 0;
 };
 
 std::unique_ptr<ChannelReceiveInterface> CreateChannelReceive(
diff --git a/audio/mock_voe_channel_proxy.h b/audio/mock_voe_channel_proxy.h
index da55650..2fd0850 100644
--- a/audio/mock_voe_channel_proxy.h
+++ b/audio/mock_voe_channel_proxy.h
@@ -122,7 +122,6 @@
       (rtc::scoped_refptr<webrtc::FrameDecryptorInterface> frame_decryptor),
       (override));
   MOCK_METHOD(void, OnLocalSsrcChange, (uint32_t local_ssrc), (override));
-  MOCK_METHOD(uint32_t, GetLocalSsrc, (), (const, override));
 };
 
 class MockChannelSend : public voe::ChannelSendInterface {