For anyone that needs to delete a ticket tracker lite instance do the one on top. Then do this:
delete from acs_permissions
where object_id in (select package_id
from apm_packages
where package_key = 'ticket-tracker-lite' and package_id = :your_instance);
Its similar to the drop script but the package_id is there. Its also advised to make use of acs_permission__revoke_permission db api.
After clearing out the permissions. You can just call this db api.
apm_package__delete(:your_instance) or delete it by the admin site-map UI of unmounted instances.
Its the weird way ttl does permission that will not allow you to nuke by the admin UI.
