rtc: sc27xx: remove .remove

dpm_sysfs_remove() and device_pm_remove() are already called by
device_del() on device removal so there is no need to call
device_init_wakeup(dev, false) from the driver and it allows to remove the
.remove callback.

Link: https://lore.kernel.org/r/20191021155806.3625-4-alexandre.belloni@bootlin.comReviewed-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-sc27xx.c

@@ -661,12 +661,6 @@ static int sprd_rtc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int sprd_rtc_remove(struct platform_device *pdev)
-{
-	device_init_wakeup(&pdev->dev, 0);
-	return 0;
-}
-
 static const struct of_device_id sprd_rtc_of_match[] = {
 	{ .compatible = "sprd,sc2731-rtc", },
 	{ },
@@ -679,7 +673,6 @@ static struct platform_driver sprd_rtc_driver = {
 		.of_match_table = sprd_rtc_of_match,
 	},
 	.probe	= sprd_rtc_probe,
-	.remove = sprd_rtc_remove,
 };
 module_platform_driver(sprd_rtc_driver);