Archive repo?

Archiving a repo keeps it visible but makes it clear no development will continue. That seems like a good fit for this repo, perhaps with a justification for why it's been archived.

I understand this functionality is now provided by core and this repo is not longer active.

Should this be archived?

No source file, test, or entry point is identified. Review the repository's current status and the note that this functionality is now in core; done means deciding whether to archive the repository and recording the justification if it is archived.

Written by the indexing model from the issue text.