[IPV4]: Remove bugus goto-s from ip_route_input_slow

Both places look like

        if (err == XXX) 
               goto yyy;
   done:

while both yyy targets look like

        err = XXX;
        goto done;

so this is ok to remove the above if-s.

yyy labels are used in other places and are not removed.
Signed-off-by: NPavel Emelyanov <xemul@openvz.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/ipv4/route.c

@@ -1813,11 +1813,6 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 		goto martian_destination;
 
 	err = ip_mkroute_input(skb, &res, &fl, in_dev, daddr, saddr, tos);
-	if (err == -ENOBUFS)
-		goto e_nobufs;
-	if (err == -EINVAL)
-		goto e_inval;
-
 done:
 	in_dev_put(in_dev);
 	if (free_res)