rtc: rv8803: Remove the check for valid time

The RTC core always calls rtc_valid_tm() after ->read_time() in case of
success (in __rtc_read_time()), so do not call it twice.

Signed-off-by: Benoît Thébaudeau <[email protected]>
Signed-off-by: Alexandre Belloni <[email protected]>
diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c
index 05c79c3..e740c83 100644
--- a/drivers/rtc/rtc-rv8803.c
+++ b/drivers/rtc/rtc-rv8803.c
@@ -150,7 +150,7 @@
 	tm->tm_mon  = bcd2bin(date[RV8803_MONTH] & 0x1f) - 1;
 	tm->tm_year = bcd2bin(date[RV8803_YEAR]) + 100;
 
-	return rtc_valid_tm(tm);
+	return 0;
 }
 
 static int rv8803_set_time(struct device *dev, struct rtc_time *tm)