[ATM]: [lec] rewrite to eliminate lec_arp_users in favor of lec_arp_lock

Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/atm/lec.h

@@ -95,7 +95,6 @@ struct lec_priv {
            establishes multiple Multicast Forward VCCs to us. This list
            collects all those VCCs. LANEv1 client has only one item in this
            list. These entries are not aged out. */
-        atomic_t lec_arp_users;
         spinlock_t lec_arp_lock;
         struct atm_vcc *mcast_vcc; /* Default Multicast Send VCC */
         struct atm_vcc *lecd;