thermal/core: Drop valid pointer check for type

Drop the valid pointer check for type in
thermal_zone_device_register_with_trips() as we already have it confirmed
for != NULL from the previous if block.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220909181322.10933-1-prabhakar.mahadev-lad.rj@bp.renesas.comSigned-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

drivers/thermal/thermal_core.c

@@ -1186,7 +1186,7 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (type && strlen(type) >= THERMAL_NAME_LENGTH) {
+	if (strlen(type) >= THERMAL_NAME_LENGTH) {
 		pr_err("Thermal zone name (%s) too long, should be under %d chars\n",
 		       type, THERMAL_NAME_LENGTH);
 		return ERR_PTR(-EINVAL);