bonding:delete unused rlb_interval_counter

Now, alb_bond_info uses rx_ntt,rlb_update_delay_counter and
rlb_update_retry_counter to decide when to call rlb_update_rx_clients().

Signed-off-by: Weiping Pan(潘卫平) <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/bonding/bond_alb.h

···
 	struct slave		*next_rx_slave;/* next slave to be assigned
 						* to a new rx client for
 						*/
-	u32			rlb_interval_counter;
 	u8			primary_is_promisc;	   /* boolean */
 	u32			rlb_promisc_timeout_counter;/* counts primary
 							     * promiscuity time