How to delete a gatekeeper?

I installed two "MCP" Gatekeepers during testing, which is obviously allowed but confusing to the system.
I can just "delete" the worker it created, but I imagine this is not the ideal path (and probably will break things).
Is there a (proper) way to delete a gatekeeper? I couldn't find one.

The issue names MCP Gatekeepers and the worker they create, but no files or tests. Start by tracing the Gatekeeper and worker-management entry points to determine the supported deletion path and whether deleting the worker is safe. Done means documenting the proper procedure, including any cleanup or limitations.

Written by the indexing model from the issue text.