diff --git a/modules/rtp_rtcp/include/rtp_receiver.h b/modules/rtp_rtcp/include/rtp_receiver.h
index 8e2737d93c..d93d6566ef 100644
--- a/modules/rtp_rtcp/include/rtp_receiver.h
+++ b/modules/rtp_rtcp/include/rtp_receiver.h
@@ -79,9 +79,6 @@ class RtpReceiver {
   // Returns the remote SSRC of the currently received RTP stream.
   virtual uint32_t SSRC() const = 0;
 
-  // Returns the current remote CSRCs.
-  virtual int32_t CSRCs(uint32_t array_of_csrc[kRtpCsrcSize]) const = 0;
-
   virtual std::vector<RtpSource> GetSources() const = 0;
 };
 }  // namespace webrtc
diff --git a/modules/rtp_rtcp/source/rtp_receiver_impl.cc b/modules/rtp_rtcp/source/rtp_receiver_impl.cc
index 1646444bb6..23f8b8b7d5 100644
--- a/modules/rtp_rtcp/source/rtp_receiver_impl.cc
+++ b/modules/rtp_rtcp/source/rtp_receiver_impl.cc
@@ -123,18 +123,6 @@ uint32_t RtpReceiverImpl::SSRC() const {
   return ssrc_;
 }
 
-// Get remote CSRC.
-int32_t RtpReceiverImpl::CSRCs(uint32_t array_of_csrcs[kRtpCsrcSize]) const {
-  rtc::CritScope lock(&critical_section_rtp_receiver_);
-
-  assert(num_csrcs_ <= kRtpCsrcSize);
-
-  if (num_csrcs_ > 0) {
-    memcpy(array_of_csrcs, current_remote_csrc_, sizeof(uint32_t) * num_csrcs_);
-  }
-  return num_csrcs_;
-}
-
 bool RtpReceiverImpl::IncomingRtpPacket(const RTPHeader& rtp_header,
                                         const uint8_t* payload,
                                         size_t payload_length,
diff --git a/modules/rtp_rtcp/source/rtp_receiver_impl.h b/modules/rtp_rtcp/source/rtp_receiver_impl.h
index d898d7371e..229c619539 100644
--- a/modules/rtp_rtcp/source/rtp_receiver_impl.h
+++ b/modules/rtp_rtcp/source/rtp_receiver_impl.h
@@ -51,8 +51,6 @@ class RtpReceiverImpl : public RtpReceiver {
 
   uint32_t SSRC() const override;
 
-  int32_t CSRCs(uint32_t array_of_csrc[kRtpCsrcSize]) const override;
-
   std::vector<RtpSource> GetSources() const override;
 
   const std::vector<RtpSource>& ssrc_sources_for_testing() const {
diff --git a/modules/rtp_rtcp/test/testAPI/test_api_rtcp.cc b/modules/rtp_rtcp/test/testAPI/test_api_rtcp.cc
index 44b1ff5264..b6368f7fbb 100644
--- a/modules/rtp_rtcp/test/testAPI/test_api_rtcp.cc
+++ b/modules/rtp_rtcp/test/testAPI/test_api_rtcp.cc
@@ -161,11 +161,6 @@ class RtpRtcpRtcpTest : public ::testing::Test {
 };
 
 TEST_F(RtpRtcpRtcpTest, RTCP_CNAME) {
-  uint32_t testOfCSRC[webrtc::kRtpCsrcSize];
-  EXPECT_EQ(2, rtp_receiver2_->CSRCs(testOfCSRC));
-  EXPECT_EQ(test_csrcs[0], testOfCSRC[0]);
-  EXPECT_EQ(test_csrcs[1], testOfCSRC[1]);
-
   // Set cname of mixed.
   EXPECT_EQ(0, module1->AddMixedCNAME(test_csrcs[0], "john@192.168.0.1"));
   EXPECT_EQ(0, module1->AddMixedCNAME(test_csrcs[1], "jane@192.168.0.2"));