[NETPOLL]: no need to store local_mac

The local_mac is managed by the network device, no need to keep a
spare copy and all the management problems that could cause.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 20250d9..e3d7959 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -20,7 +20,7 @@
 
 	u32 local_ip, remote_ip;
 	u16 local_port, remote_port;
- 	u8 local_mac[ETH_ALEN], remote_mac[ETH_ALEN];
+	u8 remote_mac[ETH_ALEN];
 };
 
 struct netpoll_info {