I have never had those to look at, but my assumption is that the they are not trim rings. They are actually (I am guessing) pickup covers with a hole on top to expose the coils. If I am right, you would remove them the same way you would remove any other pickup covers - unsolder the 2 beads of solder holding them in place to the base plate, and then lift it up over the coils.
Thanx to all. This LP is on sale at MF, but the only thing I don't love are those gold rings. I might like them if I see them in person, and it may look out of place without them, I'll have to see if I get one. They do have a liberal return policy if I don't end up liking it all together. Thanx for the replies.