This is the removal-side counterpart to uchasModuleInsertedTrapEna, chassis-wide controlling whether pulling any module out of any slot generates a trap, a log entry, both, or nothing. An admin cares about this specifically because unplanned card removal -- someone yanking a NAC without following procedure, or a card working itself loose from vibration -- is often a more urgent physical event to be alerted on than an insertion, since it immediately drops whatever service that card was providing. For example, enabling this as enableTrap(1) means a technician who accidentally bumps a NAC loose during unrelated maintenance in an adjacent slot triggers an immediate trap rather than the outage being discovered only when someone notices dropped calls.