Delete Endpoints for User

[david-rocca]

User Story

Acceptance Criteria

Scenario 1

Given:

When:

Then:

And:

Definition of Done

There is at least one unit test per scenario, proving the expectations of the scenario have been met.

There is at least one endpoint (black box) test per scenario, proving the code fulfills the scenario with the application set up similar to its production state.

The openapi.yml file has been updated to document proper use of the new endpoint.
This includes:

- Describing how different roles can interact with the system when applicable.
- Successful response
- Possible error responses