1. Remove all embassy personnel.
2. Booby-trap the embassy and vacate it.
I would also add that none of us have access to the intelligence that lead to this decision. General Petraeus, who is not known to be a Trump supporter, recently pointed this out.
That's a fair point, but after what I've seen from our State Dept. and intelligence agencies over the last 3+ years I'd say any "intelligence" they provide is totally worthless and is almost certainly being used to promote a political agenda that has nothing to do with the best interests of the citizens of the United States.
So anytime that some folks become unhappy with the US, it is okay for them to attack one of our emabassies, and, we, seeking not to offend, should just pack up and leave.
You can’t be serious.
It probably is a good idea to reduce our presence in that part of the world, but it cannot and should not be done on those terms.