User story

As a rasenmaeher developer,

I want to have consolidated logic for certificate revocation checking,

to avoid repeating myself, and to prevent feature drift.

Acceptance Criteria

Outline what you think are requirements for this story to be considered Completed.

• web/api/internal/callsign_validity.py removed, or appropriately made a simple wrapper for ocsp (depending on implementation details with middleware.)

Linked things

Link epics, features and other user stories here, if applicable.
https://pvarki.getoutline.com/doc/rasenmaeher-api-trustidentity-audit-OpE3XR3jBm