thermal: Exynos: Deletion of unnecessary checks before two function calls

The functions cpufreq_cooling_unregister() and thermal_zone_device_unregister()
test whether their argument is NULL and then return immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

drivers/thermal/samsung/exynos_thermal_common.c

@@ -417,13 +417,10 @@ void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf)
 
 	th_zone = sensor_conf->pzone_data;
 
-	if (th_zone->therm_dev)
-		thermal_zone_device_unregister(th_zone->therm_dev);
+	thermal_zone_device_unregister(th_zone->therm_dev);
 
-	for (i = 0; i < th_zone->cool_dev_size; i++) {
-		if (th_zone->cool_dev[i])
-			cpufreq_cooling_unregister(th_zone->cool_dev[i]);
-	}
+	for (i = 0; i < th_zone->cool_dev_size; ++i)
+		cpufreq_cooling_unregister(th_zone->cool_dev[i]);
 
 	dev_info(sensor_conf->dev,
 		"Exynos: Kernel Thermal management unregistered\n");