DELETE /v1.0/1234/instances/692d8418-7a8f-47f1-8060-59846c6e024f/users/testuser HTTP/1.1
User-Agent: python-example-client
Host: ord.databases.api.rackspacecloud.com
X-Auth-Token: 87c6033c-9ff6-405f-943e-2deb73f278b7
Accept: application/xml
Content-Type: application/xml