Deprecate old endpoints

[kuraisle]

Is this the right issue type?

• Yes, I'm planning work for this project team.

Summary

The non carrot-compatible endpoints are messy and must be purged

Acceptance Criteria

• Old endpoints are gone
• Tests pass.
• Documentation added.

Tasks

• Remove old endpoints
• Get rid of old unit tests.
• Documentation.

Confirm creation

• This issue is ready