Deletes a style from a Web Intelligence document.
DELETE <webiURL>/documents/{documentId}/styles/{styleId}
Where:Response type: application/xml or application/json
The response is a message stating the success or failure of the request.
DELETE <webiURL>/documents/5022/styles/L4
<success> <message>The resource of type 'Style' with identifier 'L4' has been successfully removed.</message> <id>L4</id> </success>