drivers/rtc/rtc-pcf8523.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>
Acked-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rtc/rtc-pcf8523.c

@@ -317,11 +317,6 @@ static int pcf8523_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int pcf8523_remove(struct i2c_client *client)
-{
-	return 0;
-}
-
 static const struct i2c_device_id pcf8523_id[] = {
 	{ "pcf8523", 0 },
 	{ }
@@ -343,7 +338,6 @@ static struct i2c_driver pcf8523_driver = {
 		.of_match_table = of_match_ptr(pcf8523_of_match),
 	},
 	.probe = pcf8523_probe,
-	.remove = pcf8523_remove,
 	.id_table = pcf8523_id,
 };
 module_i2c_driver(pcf8523_driver);