[NET_SCHED]: sch_ingress: remove useless printk

The printk about ingress qdisc registration error can't be triggered
under normal circumstances. Since register_qdisc only fails for two
identical registrations, the only way to trigger it is by loading the
sch_ingress modules multiple times under different names, in which
case we already return -EEXIST to userspace.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Jamal Hadi Salim <hadi@cyberus.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/sch_ingress.c

@@ -221,14 +221,7 @@ static struct Qdisc_ops ingress_qdisc_ops __read_mostly = {
 
 static int __init ingress_module_init(void)
 {
-	int ret = 0;
-
-	if ((ret = register_qdisc(&ingress_qdisc_ops)) < 0) {
-		printk("Unable to register Ingress qdisc\n");
-		return ret;
-	}
-
-	return ret;
+	return register_qdisc(&ingress_qdisc_ops);
 }
 
 static void __exit ingress_module_exit(void)