Revert of Completed the functionalities of SrtpTransport.

webrtc/pc/rtptransport.cc

Index: webrtc/pc/rtptransport.cc
diff --git a/webrtc/pc/rtptransport.cc b/webrtc/pc/rtptransport.cc
index b26783260f0436baa1bf68e2f86221a99ef2c18b..ac57eb887bc690c3fadd8bd793c24ba3629245f8 100644
--- a/webrtc/pc/rtptransport.cc
+++ b/webrtc/pc/rtptransport.cc
@@ -74,18 +74,6 @@
                                                 ? rtcp_packet_transport_
                                                 : rtp_packet_transport_;
   return transport && transport->writable();
-}
-
-bool RtpTransport::SendRtpPacket(rtc::CopyOnWriteBuffer* packet,
-                                 const rtc::PacketOptions& options,
-                                 int flags) {
-  return SendPacket(false, packet, options, flags);
-}
-
-bool RtpTransport::SendRtcpPacket(rtc::CopyOnWriteBuffer* packet,
-                                  const rtc::PacketOptions& options,
-                                  int flags) {
-  return SendPacket(true, packet, options, flags);
 }
 
 bool RtpTransport::SendPacket(bool rtcp,