[NETFILTER]: nf_conntrack: remove 'ignore_conntrack' argument from nf_conntrack_find_get

All callers pass NULL, this also doesn't seem very useful for modules.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/nf_conntrack_pptp.c b/net/netfilter/nf_conntrack_pptp.c
index 115bcb5..da36c48 100644
--- a/net/netfilter/nf_conntrack_pptp.c
+++ b/net/netfilter/nf_conntrack_pptp.c
@@ -146,7 +146,7 @@
 	DEBUGP("trying to timeout ct or exp for tuple ");
 	NF_CT_DUMP_TUPLE(t);
 
-	h = nf_conntrack_find_get(t, NULL);
+	h = nf_conntrack_find_get(t);
 	if (h)  {
 		sibling = nf_ct_tuplehash_to_ctrack(h);
 		DEBUGP("setting timeout of conntrack %p to 0\n", sibling);