Remove categories from archetypes
As a follow-up to #116 (closed), #518 (closed), because we've now removed categories support, there's no point having them in the archetype, as we'll just need to remove them.
Closes #560 (closed).
As a follow-up to #116 (closed), #518 (closed), because we've now removed categories support, there's no point having them in the archetype, as we'll just need to remove them.
Closes #560 (closed).