Slightly simplify logic for sending txcost.

neighbour.c

@@ -154,7 +154,7 @@ update_neighbour(struct neighbour *neigh, int hello, int hello_interval)
     }
 
     /* Make sure to give neighbours some feedback early after association */
-    if(neigh->reach == 0x8000) {
+    if((neigh->reach & 0xF000) == 0x8000) {
         send_hello(neigh->network);
         send_txcost(neigh, NULL);
     } else {
@@ -164,9 +164,6 @@ update_neighbour(struct neighbour *neigh, int hello, int hello_interval)
             send_txcost(neigh, NULL);
             send_self_update(neigh->network);
             send_neighbour_update(neigh, NULL);
-        } else {
-            if((neigh->reach & 0xF000) != 0 && (neigh->reach & 0x0F00) == 0)
-                send_txcost(neigh, NULL);
         }
     }
 }