net: proc: change proc_net_remove to remove_proc_entry

proc_net_remove is only used to remove proc entries
that under /proc/net,it's not a general function for
removing proc entries of netns. if we want to remove
some proc entries which under /proc/net/stat/, we still
need to call remove_proc_entry.

this patch use remove_proc_entry to replace proc_net_remove.
we can remove proc_net_remove after this patch.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index 978efc9..31bf233 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -643,7 +643,7 @@
 	recent_net->xt_recent = NULL;
 	spin_unlock_bh(&recent_lock);
 
-	proc_net_remove(net, "xt_recent");
+	remove_proc_entry("xt_recent", net->proc_net);
 }
 #else
 static inline int recent_proc_net_init(struct net *net)