rtc: 88pm860x: remove useless range check

Because the core is now checking the RTC range, it is unnecessary to check
it again in .set_time/

Link: https://lore.kernel.org/r/20200415200226.157361-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-88pm860x.c

@@ -106,12 +106,6 @@ static int pm860x_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	unsigned char buf[4];
 	unsigned long ticks, base, data;
 
-	if (tm->tm_year > 206) {
-		dev_dbg(info->dev, "Set time %d out of range. "
-			"Please set time between 1970 to 2106.\n",
-			1900 + tm->tm_year);
-		return -EINVAL;
-	}
 	ticks = rtc_tm_to_time64(tm);
 
 	/* load 32-bit read-only counter */