Delete support for receiving RTCP RPSI and SLI messages.

webrtc/modules/rtp_rtcp/source/rtp_utility.cc

Index: webrtc/modules/rtp_rtcp/source/rtp_utility.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_utility.cc b/webrtc/modules/rtp_rtcp/source/rtp_utility.cc
index def431f1709499993bac608a993aa0c49e33bc1b..fc125bc2f4e1de151f2debdef980f01da7697202 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_utility.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_utility.cc
@@ -109,7 +109,7 @@ bool RtpHeaderParser::RTCP() const {
   /* 206      RFC 5104
   * FMT 1:     Picture Loss Indication (PLI)                      supported
   * FMT 2:     Slice Lost Indication (SLI)

[danilchap, 2017/03/21 14:53:24]

either add 'not implemented' this line too. or do not add 'not implemented' next
line (preferred since other 'non implemented' messages do not have that note)

[nisse-webrtc, 2017/03/21 15:12:55]

Delete the note.

-  * FMT 3:     Reference Picture Selection Indication (RPSI)
+  * FMT 3:     Reference Picture Selection Indication (RPSI)   not implemented
   * FMT 4:     Full Intra Request (FIR) Command                   supported
   * FMT 5:     Temporal-Spatial Trade-off Request (TSTR)
   * FMT 6:     Temporal-Spatial Trade-off Notification (TSTN)