/* Unregisters a callback. 
Unregisters and disable a callback function implemented by the user.  */
void aon_sleep_timer_unregister_callback(void)
/* Unregisters a callback. 
Unregisters and disable a callback function implemented by the user.  */
void aon_sleep_timer_unregister_callback(void)
{
	aon_sleep_timer_callback = NULL;
}