Removes an input control from a document.
DELETE /documents/<documentID>/inputcontrols/<inputControlID>
Response type: application/xml or application/json
The response is a message stating the success or failure of the request.
DELETE /documents/6671/inputcontrols/D.IF0
Response:
<success> <message>The resource of type "Input Control" with identifier "D.IF0" has been successfully removed.</message> <id>D.IF0</id> </success>