periodic_callback_term_c (ul_threaded)

	status.i4.v = periodic_callback_term_c(callback_id.i4.v)

	This routine will remove a periodic callback created by
	an earlier call to 'periodic_callback_int_c'.

	callback_id	ID of periodic callback to remove
			(returned by prior call to periodic_callback_init_c)

	This function returns ACNET status values as follows:

	OK			success
	CLIB_NO_SUCH		periodic callback does not exist

	This function requires the following include files:

	ul_threaded_h:threadedlib_h, acnet_errors_h

	Related functions:

	periodic_callback_init_c, timer_callback_request_c

	C/C++ usage:

	int	status;
	int	callback_id;

	status = periodic_callback_term_c(callback_id);