rtc: remove some NOP open/release methods

Remove NOP methods from rtc-pl030 and rtc-pl031 drivers;
this is pure wasted code.

Signed-off-by: David Brownell <[e-mail]>
Cc: Alessandro Zummo <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/rtc/rtc-pl030.c

···
 	return IRQ_HANDLED;
 }
 
-static int pl030_open(struct device *dev)
-{
-	return 0;
-}
-
-static void pl030_release(struct device *dev)
-{
-}
-
 static int pl030_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
 {
 	return -ENOIOCTLCMD;
···
 }
 
 static const struct rtc_class_ops pl030_ops = {
-	.open		= pl030_open,
-	.release	= pl030_release,
 	.ioctl		= pl030_ioctl,
 	.read_time	= pl030_read_time,
 	.set_time	= pl030_set_time,

drivers/rtc/rtc-pl031.c

···
 	return IRQ_HANDLED;
 }
 
-static int pl031_open(struct device *dev)
-{
-	/*
-	 * We request IRQ in pl031_probe, so nothing to do here...
-	 */
-	return 0;
-}
-
-static void pl031_release(struct device *dev)
-{
-}
-
 static int pl031_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
 {
 	struct pl031_local *ldata = dev_get_drvdata(dev);
···
 }
 
 static const struct rtc_class_ops pl031_ops = {
-	.open = pl031_open,
-	.release = pl031_release,
 	.ioctl = pl031_ioctl,
 	.read_time = pl031_read_time,
 	.set_time = pl031_set_time,