thermal: core: remove unnecessary check in trip_point_hyst_store()

This code was shuffled around a bit recently. We no longer need to
check the value of "ret" because we know it's zero.

Signed-off-by: Dan Carpenter <[e-mail]>
Signed-off-by: Rafael J. Wysocki <[e-mail]>

drivers/thermal/thermal_sysfs.c

···
 
 	mutex_unlock(&tz->lock);
 
-	return ret ? ret : count;
+	return count;
 }
 
 static ssize_t