device: dont re-get the parent of the device

boltd/bolt-device.c

@@ -1001,7 +1001,6 @@ bolt_device_new_for_udev (struct udev_device *udev,
 
   ct = (guint64) bolt_sysfs_device_get_time (udev, BOLT_ST_CTIME);
 
-  parent = bolt_sysfs_get_parent_uid (udev);
   security = bolt_sysfs_security_for_device (udev, NULL);
   status = bolt_status_from_udev (udev, security);
   at = bolt_status_is_authorized (status) ? ct : 0;