drivers/rtc/rtc-rx8581.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: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-rx8581.c

@@ -251,11 +251,6 @@ static int rx8581_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int rx8581_remove(struct i2c_client *client)
-{
-	return 0;
-}
-
 static const struct i2c_device_id rx8581_id[] = {
 	{ "rx8581", 0 },
 	{ }
@@ -268,7 +263,6 @@ static struct i2c_driver rx8581_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= rx8581_probe,
-	.remove		= rx8581_remove,
 	.id_table	= rx8581_id,
 };