(svn r2337) -Fix: NetworkUDPRemoveAdvertise wasn't fully correct (which made Darkvater go crazy ;))

network.c

@@ -1018,7 +1018,8 @@ void NetworkDisconnect(void)
 		}
 	}
 
-	NetworkUDPRemoveAdvertise();
+	if (_network_advertise)
+		NetworkUDPRemoveAdvertise();
 
 	DeleteWindowById(WC_NETWORK_STATUS_WINDOW, 0);
 

network_udp.c

@@ -555,7 +555,7 @@ void NetworkUDPRemoveAdvertise(void)
 	Packet *p;
 
 	/* Check if we are advertising */
-	if (!_networking || !_network_server || !_network_udp_server || !_network_advertise)
+	if (!_networking || !_network_server || !_network_udp_server)
 		return;
 
 	/* check for socket */