{
{     This request is used to destroy the operating system supplied portion
{  of a subsystem io request.
{
{          CMP$DESTROY_IO_REQUEST (REQUEST_ID, STATUS)
{
{  REQUEST_ID: (input/output)  This parameter specifies the operating system
{                        identification of the io request to destroy.
{
{  STATUS: (output)  This parameter returns the request status.
{
