dn_route_rcv: remove redundant dev null check

dev cannot be NULL here since its already being accessed
before. Remove the redundant null check.
Signed-off-by: Gaurav Singh <gaurav1086@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/decnet/dn_route.c

@@ -670,7 +670,7 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
 	if (decnet_debug_level & 1)
 		printk(KERN_DEBUG
 			"dn_route_rcv: got 0x%02x from %s [%d %d %d]\n",
-			(int)flags, (dev) ? dev->name : "???", len, skb->len,
+			(int)flags, dev->name, len, skb->len,
 			padlen);
 
 	if (flags & DN_RT_PKT_CNTL) {