Delete/ Server Side Copy Refactor

[iglesiasbrandon]

Blue Print: https://review.dev.storj.io/c/storj/storj/+/9979/2/docs/blueprints/fix-deletes-and-server-side-copy.md

Prerequisite for #40

Milestone: https://github.com/storj/storj/milestone/44

[shaupt131]

All satellites have been switched to the new SSC methodology, and migrations are complete. Removal of old code is in progress.

[iglesiasbrandon]

All of the functionality for this effort has been completed and deployed to production. the only remaining ticket is to clean up/ delete the old code but we can call this done!