thermal: int340x_thermal: Consolidate priv->data_vault checks

It is sufficient to check priv->data_vault once in the error code path
of int3400_thermal_probe(), so do that.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/thermal/intel/int340x_thermal/int3400_thermal.c

@@ -614,8 +614,7 @@ static int int3400_thermal_probe(struct platform_device *pdev)
 
 free_sysfs:
 	cleanup_odvp(priv);
-	if (priv->data_vault) {
-		if (!ZERO_OR_NULL_PTR(priv->data_vault))
+	if (!ZERO_OR_NULL_PTR(priv->data_vault)) {
 		sysfs_remove_group(&pdev->dev.kobj, &data_attribute_group);
 		kfree(priv->data_vault);
 	}