rtc: pl031: remove useless invalid alarm handling

The core will never pass an invalid alarm to .set_alarm, it is not
necessary to check for its validity.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20200306005809.38530-1-alexandre.belloni@bootlin.comSigned-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-pl031.c

@@ -210,9 +210,6 @@ static int pl031_stv2_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 	unsigned long bcd_year;
 	int ret;
 
-	/* At the moment, we can only deal with non-wildcarded alarm times. */
-	ret = rtc_valid_tm(&alarm->time);
-	if (ret == 0) {
 	ret = pl031_stv2_tm_to_time(dev, &alarm->time,
 				    &time, &bcd_year);
 	if (ret == 0) {
@@ -221,7 +218,6 @@ static int pl031_stv2_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 
 		pl031_alarm_irq_enable(dev, alarm->enabled);
 	}
-	}
 
 	return ret;
 }
@@ -285,15 +281,11 @@ static int pl031_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 	unsigned long time;
 	int ret;
 
-	/* At the moment, we can only deal with non-wildcarded alarm times. */
-	ret = rtc_valid_tm(&alarm->time);
-	if (ret == 0) {
 	ret = rtc_tm_to_time(&alarm->time, &time);
 	if (ret == 0) {
 		writel(time, ldata->base + RTC_MR);
 		pl031_alarm_irq_enable(dev, alarm->enabled);
 	}
-	}
 
 	return ret;
 }