Deletes a Web Intelligence document referenced by its identifier.
DELETE <webiURL>/documents/{documentId}
Response type: application/xml or application/json
The response is a message stating the success or failure of the request.
DELETE <webiURL>/documents/8022
<success> <message>The resource of type 'Document' with identifier '8022' has been successfully removed.</message> <id>8022</id> </success>