don't be so defensive

(we are not that paranoid elsewhere)

weaver/main.go

@@ -64,10 +64,6 @@ func main() {
 		log.Fatal(err)
 	}
 
-	if connLimit < 0 {
-		connLimit = 0
-	}
-
 	if routerName == "" {
 		routerName = iface.HardwareAddr.String()
 	}