[NET]: net.ipv4.ip_autoconfig sysctl removal

The sysctl net.ipv4.ip_autoconfig is a legacy value that is not used.
Signed-off-by: NStephen Hemminger <shemminger@osdl.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/net/ip.h

@@ -147,7 +147,6 @@ void ip_send_reply(struct sock *sk, struct sk_buff *skb, struct ip_reply_arg *ar
 struct ipv4_config
 {
 	int	log_martians;
-	int	autoconfig;
 	int	no_pmtu_disc;
 };
 

net/ipv4/sysctl_net_ipv4.c

@@ -181,14 +181,6 @@ ctl_table ipv4_table[] = {
 		.proc_handler	= &ipv4_doint_and_flush,
 		.strategy	= &ipv4_doint_and_flush_strategy,
 	},
-        {
-		.ctl_name	= NET_IPV4_AUTOCONFIG,
-		.procname	= "ip_autoconfig",
-		.data		= &ipv4_config.autoconfig,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= &proc_dointvec
-	},
         {
 		.ctl_name	= NET_IPV4_NO_PMTU_DISC,
 		.procname	= "ip_no_pmtu_disc",