As a user, I would like to be able to delete attachments via API

Right now, it is only possible to add new attachments and retrieve existing attachments via API:

• POST /api/v2/attachments
• GET /api/v2/attachments/{attachmentId}

However, it is not possible to delete existing attachments in an automated away, which limits the user's ability to manage their attachments via API.

So as a user, I would like a new endpoint to be added, allowing me to DELETE attachments via REST API as well.