net_sched: remove unused parameter from act cleanup ops

No one actually uses it.

Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sched/act_skbmod.c b/net/sched/act_skbmod.c
index b642ad3..f090bba 100644
--- a/net/sched/act_skbmod.c
+++ b/net/sched/act_skbmod.c
@@ -184,7 +184,7 @@ static int tcf_skbmod_init(struct net *net, struct nlattr *nla,
 	return ret;
 }
 
-static void tcf_skbmod_cleanup(struct tc_action *a, int bind)
+static void tcf_skbmod_cleanup(struct tc_action *a)
 {
 	struct tcf_skbmod *d = to_skbmod(a);
 	struct tcf_skbmod_params  *p;