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/fib_trie.c b/net/ipv4/fib_trie.c
index 67c1d4b..61e03da 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2620,18 +2620,18 @@
 	return 0;
 
 out3:
-	proc_net_remove(net, "fib_triestat");
+	remove_proc_entry("fib_triestat", net->proc_net);
 out2:
-	proc_net_remove(net, "fib_trie");
+	remove_proc_entry("fib_trie", net->proc_net);
 out1:
 	return -ENOMEM;
 }
 
 void __net_exit fib_proc_exit(struct net *net)
 {
-	proc_net_remove(net, "fib_trie");
-	proc_net_remove(net, "fib_triestat");
-	proc_net_remove(net, "route");
+	remove_proc_entry("fib_trie", net->proc_net);
+	remove_proc_entry("fib_triestat", net->proc_net);
+	remove_proc_entry("route", net->proc_net);
 }
 
 #endif /* CONFIG_PROC_FS */