docs: Remove local collaboration docs (#45301)

This PR removes the docs for running Collab locally, as they are
outdated and don't reflect the current state of affairs.

Release Notes:

- N/A
ca90b8555dMarshall Bowers committed on 12/18/2025, 9:42:28 PM· committed by GitHubparent8516d81
7 files changedLine totals unavailable