tcp: fix tcp_min_tso_segs sysctl

tcp_min_tso_segs is now stored in u8, so max value is 255.

255 limit is enforced by proc_dou8vec_minmax().

We can therefore remove the gso_max_segs variable.

Fixes: 47996b489bdc ("tcp: convert elligible sysctls to u8")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv4/sysctl_net_ipv4.c

@@ -31,7 +31,6 @@
 static int two = 2;
 static int four = 4;
 static int thousand = 1000;
-static int gso_max_segs = GSO_MAX_SEGS;
 static int tcp_retr1_max = 255;
 static int ip_local_port_range_min[] = { 1, 1 };
 static int ip_local_port_range_max[] = { 65535, 65535 };
@@ -1245,7 +1244,6 @@ static struct ctl_table ipv4_net_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dou8vec_minmax,
 		.extra1		= SYSCTL_ONE,
-		.extra2		= &gso_max_segs,
 	},
 	{
 		.procname	= "tcp_min_rtt_wlen",