serial: pl011: Remove serial_rs485 sanitization

Serial core handles serial_rs485 sanitization.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20220606100433.13793-30-ilpo.jarvinen@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/tty/serial/amba-pl011.c

@@ -2681,17 +2681,12 @@ static int pl011_find_free_port(void)
 static int pl011_get_rs485_mode(struct uart_amba_port *uap)
 {
 	struct uart_port *port = &uap->port;
-	struct serial_rs485 *rs485 = &port->rs485;
 	int ret;
 
 	ret = uart_get_rs485_mode(port);
 	if (ret)
 		return ret;
 
-	/* clamp the delays to [0, 100ms] */
-	rs485->delay_rts_before_send = min(rs485->delay_rts_before_send, 100U);
-	rs485->delay_rts_after_send = min(rs485->delay_rts_after_send, 100U);
-
 	return 0;
 }