[NETLINK]: Remove unused groups variable

Leftover from dynamic multicast groups allocation work.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 04b72d3..8488c15 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -396,7 +396,6 @@
 {
 	struct module *module = NULL;
 	struct netlink_sock *nlk;
-	unsigned int groups;
 	int err = 0;
 
 	sock->state = SS_UNCONNECTED;
@@ -418,7 +417,6 @@
 	if (nl_table[protocol].registered &&
 	    try_module_get(nl_table[protocol].module))
 		module = nl_table[protocol].module;
-	groups = nl_table[protocol].groups;
 	netlink_unlock_table();
 
 	if ((err = __netlink_create(sock, protocol)) < 0)