Geo - Remove legacy replication for project repositories

What does this MR do and why?

Remove legacy replication/verification code for project repositories since the replication/verification has been migrated to the SSF.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related issues

Related to #416384 (closed)