Remove retired DAGs from the codebase

[sarayourfriend]

Fixes

Fixes #4240 by @sarayourfriend

Description

This PR removes the retired DAGs and references to them. In places where references could not easily be removed, I've updated the links to use stable links to HEAD as it was when I wrote the commits in this changeset.

Testing Instructions

CI should pass.

Search the monorepo for "retired" and make sure I didn't miss any references.

Checklist

• My pull request has a descriptive title (not a vague title likeUpdate index.md).
• My pull request targets the default branch of the repository (main) or a parent feature branch.
• My commit messages follow best practices.
• My code follows the established code style of the repository.
• [N/A] I added or updated tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no visible errors.
• I ran the DAG documentation generator (ov just catalog/generate-docs for catalog
  PRs) or the media properties generator (ov just catalog/generate-docs media-props
  for the catalog or ov just api/generate-docs for the API) where applicable.

Developer Certificate of Origin

Developer Certificate of Origin

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Everyone is permitted to copy and distribute verbatim copies of this
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    have the right to submit it under the open source license
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[github-actions]

Full-stack documentation: https://docs.openverse.org/_preview/4867

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Changed files 🔄:

• https://docs.openverse.org/_preview/4867/catalog/guides/quickstart.html
• https://docs.openverse.org/_preview/4867/catalog/reference/index.html
• https://docs.openverse.org/_preview/4867/meta/media_properties/catalog.html

[zackkrida]

LGTM. I tried searching the repo for "retired" and some other terms, like the Dag IDs, and I believe you've captured everything.