Flush send_neighbour_update, which is dead code now.

message.c

@@ -838,16 +838,6 @@ send_self_update(struct network *net, int force_seqno)
     }
 }
 
-void
-send_neighbour_update(struct neighbour *neigh, struct network *net)
-{
-    int i;
-    for(i = 0; i < numroutes; i++) {
-        if(routes[i].installed && routes[i].neigh == neigh)
-            send_update(net, 0, routes[i].src->prefix, routes[i].src->plen);
-    }
-}
-
 void
 send_ihu(struct neighbour *neigh, struct network *net)
 {

message.h

@@ -58,7 +58,6 @@ void send_update(struct network *net, int urgent,
                  const unsigned char *prefix, unsigned char plen);
 void update_myseqno(int force);
 void send_self_update(struct network *net, int force_seqno);
-void send_neighbour_update(struct neighbour *neigh, struct network *net);
 void send_ihu(struct neighbour *neigh, struct network *net);
 void schedule_flush_now(struct network *net);
 void flushupdates(void);