pps: clients: gpio: Remove redundant condition in ->remove()

The timer along with GPIO API are NULL-aware, there is no need to test
against existing GPIO echo line.
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210318130321.24227-3-andriy.shevchenko@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/pps/clients/pps-gpio.c

@@ -240,11 +240,9 @@ static int pps_gpio_remove(struct platform_device *pdev)
 	struct pps_gpio_device_data *data = platform_get_drvdata(pdev);
 
 	pps_unregister_source(data->pps);
-	if (data->echo_pin) {
 	del_timer_sync(&data->echo_timer);
 	/* reset echo pin in any case */
 	gpiod_set_value(data->echo_pin, 0);
-	}
 	dev_info(&pdev->dev, "removed IRQ %d as PPS source\n", data->irq);
 	return 0;
 }