Removing him from the invitee list for a meeting is a manual process.
However, the Feature Assistant Extension has the ability to add an attendee to multiple events. As a side benefit, if someone is no longer an approved member of the unit, he will drop off the invitees list. So, you could disapprove his membership, use the FAE to remove him from multiple events, and then re-approve his membership. Disapproving membership has to do with the green shield. It has nothing to do with an end date.
