netfilter: conntrack: Remove nf_ct_conntrack_flush_report

The only user of nf_ct_conntrack_flush_report() was ctnetlink_del_conntrack().
After adding support for flushing connections with a given mark, this function
is no longer called.
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

include/net/netfilter/nf_conntrack.h

@@ -191,8 +191,6 @@ __nf_conntrack_find(struct net *net, u16 zone,
 int nf_conntrack_hash_check_insert(struct nf_conn *ct);
 bool nf_ct_delete(struct nf_conn *ct, u32 pid, int report);
 
-void nf_conntrack_flush_report(struct net *net, u32 portid, int report);
-
 bool nf_ct_get_tuplepr(const struct sk_buff *skb, unsigned int nhoff,
 		       u_int16_t l3num, struct nf_conntrack_tuple *tuple);
 bool nf_ct_invert_tuplepr(struct nf_conntrack_tuple *inverse,

net/netfilter/nf_conntrack_core.c

@@ -1426,12 +1426,6 @@ void nf_ct_free_hashtable(void *hash, unsigned int size)
 }
 EXPORT_SYMBOL_GPL(nf_ct_free_hashtable);
 
-void nf_conntrack_flush_report(struct net *net, u32 portid, int report)
-{
-	nf_ct_iterate_cleanup(net, kill_all, NULL, portid, report);
-}
-EXPORT_SYMBOL_GPL(nf_conntrack_flush_report);
-
 static int untrack_refs(void)
 {
 	int cnt = 0, cpu;