thermal: core: remove unnecessary device_remove() calls

Given that cdevs sysfs properties are already registered using
the dev.groups, there is no need to explicitly call device_remove()
for each property.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

drivers/thermal/thermal_core.c

@@ -1876,11 +1876,6 @@ void thermal_cooling_device_unregister(struct thermal_cooling_device *cdev)
 
 	mutex_unlock(&thermal_list_lock);
 
-	if (cdev->type[0])
-		device_remove_file(&cdev->device, &dev_attr_cdev_type);
-	device_remove_file(&cdev->device, &dev_attr_max_state);
-	device_remove_file(&cdev->device, &dev_attr_cur_state);
-
 	release_idr(&thermal_cdev_idr, &thermal_idr_lock, cdev->id);
 	device_unregister(&cdev->device);
 	return;