drivers/rtc/rtc-da9055.c: remove empty function

After the switch to devm_ functions and the removal of
rtc_device_unregister(), the 'remove' function does not do anything.
Delete it.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-da9055.c

@@ -315,11 +315,6 @@ static int da9055_rtc_probe(struct platform_device *pdev)
 
 }
 
-static int da9055_rtc_remove(struct platform_device *pdev)
-{
-	return 0;
-}
-
 #ifdef CONFIG_PM
 /* Turn off the alarm if it should not be a wake source. */
 static int da9055_rtc_suspend(struct device *dev)
@@ -392,7 +387,6 @@ static const struct dev_pm_ops da9055_rtc_pm_ops = {
 
 static struct platform_driver da9055_rtc_driver = {
 	.probe  = da9055_rtc_probe,
-	.remove = da9055_rtc_remove,
 	.driver = {
 		.name   = "da9055-rtc",
 		.owner  = THIS_MODULE,