[IPV6] cleanup : remove proc_net_remove called twice

[Daniel Lezcano]

The file /proc/net/if_inet6 is removed twice.
First time in:
         inet6_exit
              ->addrconf_cleanup
And followed a few lines after by:
         inet6_exit
              -> if6_proc_exit

Signed-off-by: Daniel Lezcano <dlezcano at fr.ibm.com>
---
  net/ipv6/addrconf.c |    4 ----
  1 file changed, 4 deletions(-)

Index: net-2.6/net/ipv6/addrconf.c
===================================================================
--- net-2.6.orig/net/ipv6/addrconf.c
+++ net-2.6/net/ipv6/addrconf.c
@@ -4288,8 +4288,4 @@ void __exit addrconf_cleanup(void)
         del_timer(&addr_chk_timer);

         rtnl_unlock();
-
-#ifdef CONFIG_PROC_FS
-       proc_net_remove(&init_net, "if_inet6");
-#endif
  }