drivers/rtc/rtc-max8997.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: <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/rtc/rtc-max8997.c

···
 	return ret;
 }
 
-static int max8997_rtc_remove(struct platform_device *pdev)
-{
-	return 0;
-}
-
 static void max8997_rtc_shutdown(struct platform_device *pdev)
 {
 	struct max8997_rtc_info *info = platform_get_drvdata(pdev);
···
 		.owner	= THIS_MODULE,
 	},
 	.probe		= max8997_rtc_probe,
-	.remove		= max8997_rtc_remove,
 	.shutdown	= max8997_rtc_shutdown,
 	.id_table	= rtc_id,
 };