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/ipv6/route.c b/net/ipv6/route.c
index e1228d8..515bb51 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -3004,8 +3004,8 @@
 static void __net_exit ip6_route_net_exit_late(struct net *net)
 {
 #ifdef CONFIG_PROC_FS
-	proc_net_remove(net, "ipv6_route");
-	proc_net_remove(net, "rt6_stats");
+	remove_proc_entry("ipv6_route", net->proc_net);
+	remove_proc_entry("rt6_stats", net->proc_net);
 #endif
 }