sysctl net: Remove unused binary sysctl code

Now that sys_sysctl is a compatiblity wrapper around /proc/sys
all sysctl strategy routines, and all ctl_name and strategy
entries in the sysctl tables are unused, and can be
revmoed.

In addition neigh_sysctl_register has been modified to no longer
take a strategy argument and it's callers have been modified not
to pass one.

Cc: "David Miller" <davem@davemloft.net>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: netdev@vger.kernel.org
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>

net/dccp/sysctl.c

@@ -93,13 +93,13 @@ static struct ctl_table dccp_default_table[] = {
 		.proc_handler	= proc_dointvec_ms_jiffies,
 	},
 
-	{ .ctl_name = 0, }
+	{ }
 };
 
 static struct ctl_path dccp_path[] = {
-	{ .procname = "net", .ctl_name = CTL_NET, },
-	{ .procname = "dccp", .ctl_name = NET_DCCP, },
-	{ .procname = "default", .ctl_name = NET_DCCP_DEFAULT, },
+	{ .procname = "net", },
+	{ .procname = "dccp", },
+	{ .procname = "default", },
 	{ }
 };