Deletes the specified virtual machine from the host.
This function un-registers the machine from the Parallels Service and deletes all its files. This operation cannot be undone. The specified machine must be registered with the Parallels Service. To un-register a machine from the Parallels Service without deleting any of its file, use the PrlVm_Unreg function.
PRL_ERR_INVALID_ARG - invalid handle or null pointer was passed.
PRL_ERR_SUCCESS - function completed successfully.