totemudp: Remove memb_join discarding

This is already implemented in totemsrp in much cleaner way (added
by commit ab8942f6260fde93824ed2a18e09e572b59ceb25).

Signed-off-by: Kazunori INOUE <inouekazu@intellilink.co.jp>
Reviewed-by: Jan Friesse <jfriesse@redhat.com>

exec/totemudp.c

@@ -88,8 +88,6 @@
 #define BIND_STATE_REGULAR	1
 #define BIND_STATE_LOOPBACK	2
 
-#define MESSAGE_TYPE_MEMB_JOIN	3
-
 struct totemudp_socket {
 	int mcast_recv;
 	int mcast_send;
@@ -454,7 +452,6 @@ static int net_deliver_fn (
 	struct sockaddr_storage system_from;
 	int bytes_received;
 	int res = 0;
-	char *message_type;
 
 	if (instance->flushing == 1) {
 		iovec = &instance->totemudp_iov_recv_flush;
@@ -505,17 +502,6 @@ static int net_deliver_fn (
 	}
 	iovec->iov_len = bytes_received;
 
-	/*
-	 * Drop all non-mcast messages (more specifically join
-	 * messages should be dropped)
-	 */
-	message_type = (char *)iovec->iov_base;
-	if (instance->flushing == 1 && *message_type == MESSAGE_TYPE_MEMB_JOIN) {
-		log_printf(instance->totemudp_log_level_warning, "JOIN or LEAVE message was thrown away during flush operation.");
-		iovec->iov_len = FRAME_SIZE_MAX;
-		return (0);
-	}
-
 	/*
 	 * Handle incoming message
 	 */