Remove docs-page & glossary page packages

[nayres]

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Description

@hashicorp/react-docs-page was moved out of this repo into an internal mono-repo, and unused elsewhere, deeming it safe to be removed.

Through checking if the package could safely be deleted, @hashicorp/react-glossary-page was the only package that was dependent on @hashicorp/react-docs-page. After checking for repos/ packages dependent on@hashicorp/react-glossary-page, I found that it wasn't being used anywhere, making it also safe to remove from this repo.

PR Checklist 🚀

Items in this checklist may not may not apply to your PR, but please consider each item carefully.

• Add Asana and Preview links above.
• Conduct thorough self-review.
• Add or update tests as appropriate.
• Conduct reasonable cross browser testing for both compatibility and responsive behavior (We have a Sauce Labs account for this, if you don't have access, just ask!).
• Conduct reasonable accessibility review (use the WAS as a guide or an axe browser plugin until we establish more formal checks).
• Identify (in the description above) and document (add Asana tasks on this board) any technical debt that you're aware of, but are not addressing as part of this PR.

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Latest commit: c46fba5

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Name	Status	Preview	Updated (UTC)
react-components	✅ Ready (Inspect)	Visit Preview	Jun 6, 2023 9:58pm

[zchsh]

🎏 I think we still use @hashicorp/react-docs-page in hashicorp/dev-portal to render https://docs.hashicorp.com/sentinel. That docs.hashicorp.com site is still in "proxied via one app" mode rather than "monorepo" mode, similar to how other io sites were until recently.

Here's the import location, and an example production page file.

We have a task to somehow deal with Sentinel docs, likely by migrating to the Dev Dot UI, in 🎟 [io-migrations] determine how to handle sentinel, in the future. I'm not sure on priority there from a higher level, but happy to provide any info or help that I can in pushing that work forward 🙇‍♂️