net/: Kill now superfluous ->last_rx stores.

The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.

Signed-off-by: David S. Miller <davem@davemloft.net>

net/bluetooth/bnep/core.c

@@ -311,7 +311,6 @@ static inline int bnep_rx_frame(struct bnep_session *s, struct sk_buff *skb)
 	struct sk_buff *nskb;
 	u8 type;
 
-	dev->last_rx = jiffies;
 	s->stats.rx_bytes += skb->len;
 
 	type = *(u8 *) skb->data; skb_pull(skb, 1);