Remove TMMBRSet class
by cleaning RTCPReceiveInfo class
and following cleaning of RTCPReceiver::BoundingSet function.

BUG=webrtc:5565

Review-Url: https://codereview.webrtc.org/2254703003
Cr-Commit-Position: refs/heads/master@{#13817}
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_receiver.h b/webrtc/modules/rtp_rtcp/source/rtcp_receiver.h
index f66df03..b4025f7 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_receiver.h
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_receiver.h
@@ -96,7 +96,7 @@
 
     bool UpdateRTCPReceiveInformationTimers();
 
-    int32_t BoundingSet(bool* tmmbrOwner, TMMBRSet* boundingSetRec);
+    std::vector<rtcp::TmmbItem> BoundingSet(bool* tmmbr_owner);
 
     int32_t UpdateTMMBR();
 
@@ -112,9 +112,6 @@
      uint32_t remoteSSRC);
  RTCPHelp::RTCPReceiveInformation* GetReceiveInformation(uint32_t remoteSSRC);
 
-    void UpdateReceiveInformation(
-        RTCPHelp::RTCPReceiveInformation& receiveInformation);
-
     void HandleSenderReceiverReport(
         RTCPUtility::RTCPParserV2& rtcpParser,
         RTCPHelp::RTCPPacketInformation& rtcpPacketInformation)