tunnels: Remove stat member from ip_tunnel struct.

All users already use on-device statistics, so this field can be
safely removed.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/ipip.h b/include/net/ipip.h
index 633ed4d..a85bda6 100644
--- a/include/net/ipip.h
+++ b/include/net/ipip.h
@@ -11,7 +11,6 @@
 {
 	struct ip_tunnel	*next;
 	struct net_device	*dev;
-	struct net_device_stats	stat;
 
 	int			recursion;	/* Depth of hard_start_xmit recursion */
 	int			err_count;	/* Number of arrived ICMP errors */