fix: do not free transport: it's up to the application layer to do it.

git-svn-id: svn+ssh://svn.savannah.nongnu.org/linphone/trunk@730 3f6dc0c8-ddfe-455d-9043-3cd528dc4637

linphone/oRTP/src/rtpsession.c

@@ -1266,10 +1266,7 @@ void rtp_session_release_sockets(RtpSession *session){
 	if (session->rtcp.socket>=0) close_socket (session->rtcp.socket);
 	session->rtp.socket=-1;
 	session->rtcp.socket=-1;
-	if (session->rtp.tr!=NULL)
-	  ortp_free(session->rtp.tr);
-	if (session->rtcp.tr!=NULL)
-	  ortp_free(session->rtcp.tr);
+	
 	session->rtp.tr = 0;
 	session->rtcp.tr = 0;