caif_usb: remove redundant memory message

Let MM subsystem display out of memory messages.
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/caif/caif_usb.c

@@ -87,10 +87,9 @@ static struct cflayer *cfusbl_create(int phyid, u8 ethaddr[ETH_ALEN],
 {
 	struct cfusbl *this = kmalloc(sizeof(struct cfusbl), GFP_ATOMIC);
 
-	if (!this) {
-		pr_warn("Out of memory\n");
+	if (!this)
 		return NULL;
-	}
+
 	caif_assert(offsetof(struct cfusbl, layer) == 0);
 
 	memset(this, 0, sizeof(struct cflayer));