WIP: Repo-Management Remove Cloudv1 Relics Tracking issue

[varsanojidan]

Plan

We want to get rid of any code related to Cloudv1 concepts (like namespace_org_id and namespace_user_id) as they are currently no longer supported and are just dead code.

Tracked issues

Legend

• 👩 Customer issue
• 🐛 Bug
• 🧶 Technical debt
• 🎩 Quality of life
• 🛠️ Roadmap
• 🕵️ Spike
• 🔒 Security issue
• 🙆 Stretch goal

/cc @jplahn @ryphil

[sashaostrikov]

whoa, that was fast, brat! (should we reopen it? 😄)

[varsanojidan]

@sashaostrikov 😅 of course brat you know how I do. I spoke with @jplahn and we decided it might be better to just track these issues individually under our techdebt tracking issue

[sashaostrikov]

@varsanojidan SGTM 👍🏻 I'd add cloudv1-debt label along, it seems nice to have

[ryanslade]

Oops, didn't see this issue and create something similar:
https://github.com/sourcegraph/sourcegraph/issues/44700