media: rc: ir-spi: Drop empty spi_driver remove callback

A driver with a remove callback that just returns 0 behaves identically
to a driver with no remove callback at all. So simplify accordingly.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/rc/ir-spi.c

@@ -152,11 +152,6 @@ static int ir_spi_probe(struct spi_device *spi)
 	return devm_rc_register_device(&spi->dev, idata->rc);
 }
 
-static int ir_spi_remove(struct spi_device *spi)
-{
-	return 0;
-}
-
 static const struct of_device_id ir_spi_of_match[] = {
 	{ .compatible = "ir-spi-led" },
 	{},
@@ -165,7 +160,6 @@ MODULE_DEVICE_TABLE(of, ir_spi_of_match);
 
 static struct spi_driver ir_spi_driver = {
 	.probe = ir_spi_probe,
-	.remove = ir_spi_remove,
 	.driver = {
 		.name = IR_SPI_DRIVER_NAME,
 		.of_match_table = ir_spi_of_match,