That's the beauty of these things- You can remove, reinstall or replace the bolt as many times as you'd like. The anchor is a separate part and, really, you can screw anything into the hole that has that thread, which they use standard bolt threads. It literally creates a threaded boss in the concrete that you can use however and still have a flush surface when nothing is screwed into it. If it's no longer wanted, just fill it with epoxy or concrete patch. We use them for safes since we can mount the anchors then slide the safe over the holes rather than having to lift the safe over a threaded stud such as what a wedge anchor would have.
You drill the hole, drop the anchor in and use a punch to drive a slug (already captured inside at the bottom of the anchor) downward which spreads the bottom outward like a rivet. Screw in a bolt, allthread rod, eyebolt, etc.