Remove log, the function is already deprecated.

Bug: None
Change-Id: I59375bd60910b44d44328d652713997d38c208a6
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/290562
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#39005}

modules/rtp_rtcp/source/rtp_rtcp_impl.cc

diff --git a/modules/rtp_rtcp/source/rtp_rtcp_impl.cc b/modules/rtp_rtcp/source/rtp_rtcp_impl.cc
index eac023d..b7f2323 100644
--- a/modules/rtp_rtcp/source/rtp_rtcp_impl.cc
+++ b/modules/rtp_rtcp/source/rtp_rtcp_impl.cc
@@ -58,8 +58,6 @@
 std::unique_ptr<RtpRtcp> RtpRtcp::DEPRECATED_Create(
     const Configuration& configuration) {
   RTC_DCHECK(configuration.clock);
-  RTC_LOG(LS_ERROR)
-      << "*********** USING WebRTC INTERNAL IMPLEMENTATION DETAILS ***********";
   return std::make_unique<ModuleRtpRtcpImpl>(configuration);
 }