kill TIOCSER[SG]WILD

the only user is very old setserial rc script and even that
(as far back as MCC Interim, AFAICS) doesn't actually fail -
just gives one message during the boot ("Cannot scan for wild
interrupts") and proceeds past that just fine.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>

arch/ia64/hp/sim/simserial.c

@@ -322,11 +322,6 @@ static int rs_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
 	case TIOCSERCONFIG:
 	case TIOCSERGETLSR: /* Get line status register */
 		return -EINVAL;
-	case TIOCSERGWILD:
-	case TIOCSERSWILD:
-		/* "setserial -W" is called in Debian boot */
-		printk (KERN_INFO "TIOCSER?WILD ioctl obsolete, ignored.\n");
-		return 0;
 	}
 	return -ENOIOCTLCMD;
 }

drivers/tty/amiserial.c

@@ -1274,12 +1274,6 @@ static int rs_ioctl(struct tty_struct *tty,
 			finish_wait(&info->tport.delta_msr_wait, &wait);
 			return ret;
 
-		case TIOCSERGWILD:
-		case TIOCSERSWILD:
-			/* "setserial -W" is called in Debian boot */
-			printk ("TIOCSER?WILD ioctl obsolete, ignored.\n");
-			return 0;
-
 		default:
 			return -ENOIOCTLCMD;
 		}

drivers/tty/serial/serial_core.c

@@ -1324,11 +1324,6 @@ uart_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
 		ret = uart_do_autoconfig(tty, state);
 		up_write(&tty->termios_rwsem);
 		break;
-
-	case TIOCSERGWILD: /* obsolete */
-	case TIOCSERSWILD: /* obsolete */
-		ret = 0;
-		break;
 	}
 
 	if (ret != -ENOIOCTLCMD)