drivers/rtc/rtc-ls1x.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: zhao zhang <zhzhl555@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-ls1x.c

@@ -185,17 +185,11 @@ err:
 	return ret;
 }
 
-static int ls1x_rtc_remove(struct platform_device *pdev)
-{
-	return 0;
-}
-
 static struct platform_driver  ls1x_rtc_driver = {
 	.driver		= {
 		.name	= "ls1x-rtc",
 		.owner	= THIS_MODULE,
 	},
-	.remove		= ls1x_rtc_remove,
 	.probe		= ls1x_rtc_probe,
 };