drivers/rtc/rtc-max8998.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 <[e-mail]>
Cc: Minkyu Kang <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/rtc/rtc-max8998.c

···
 	return 0;
 }
 
-static int max8998_rtc_remove(struct platform_device *pdev)
-{
-	return 0;
-}
-
 static const struct platform_device_id max8998_rtc_id[] = {
 	{ "max8998-rtc", TYPE_MAX8998 },
 	{ "lp3974-rtc", TYPE_LP3974 },
···
 		.owner	= THIS_MODULE,
 	},
 	.probe		= max8998_rtc_probe,
-	.remove		= max8998_rtc_remove,
 	.id_table	= max8998_rtc_id,
 };