Changes to Delete a file

added the media type application/json for the response with the status 400

added the media type application/json for the response with the status 401

added the media type application/json for the response with the status 403

added the media type application/json for the response with the status 404

added the non-success response with the status 503

added the required property code to the response with the 500 status

added the required property detail to the response with the 500 status

added the required property doc_url to the response with the 500 status

added the required property id to the response with the 500 status