If the record could not be deleted after the U_DELETE call, the user
edit routine is called with the type parameter set to U_BADDELETE.
All the other parameters are NULL. This call informs the user edit routine
that the record was not deleted. If any changes were made to other files when
the U_DELETE call was made, those changes should be removed at this time.
If the U_BADDELETE user edit routine returns an error message, form
displays it, otherwise, the RMS error message is displayed.