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/ipv4/igmp.c b/net/ipv4/igmp.c
index be85628..d8c2327 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -2656,15 +2656,15 @@
 	return 0;
 
 out_mcfilter:
-	proc_net_remove(net, "igmp");
+	remove_proc_entry("igmp", net->proc_net);
 out_igmp:
 	return -ENOMEM;
 }
 
 static void __net_exit igmp_net_exit(struct net *net)
 {
-	proc_net_remove(net, "mcfilter");
-	proc_net_remove(net, "igmp");
+	remove_proc_entry("mcfilter", net->proc_net);
+	remove_proc_entry("igmp", net->proc_net);
 }
 
 static struct pernet_operations igmp_net_ops = {