According to them, no.
According to some recent-ish posts here, yes.
What to do? Try for yourself and see.

(If they have indeed activated no-deactivation, you'd need to take out a support ticket explaining why you want to deactivate the particular files, and throw yourself onto their mercy.)

Quite a few people on here indicated that deactivation wasn't working, so presumably they cottoned on and fixed it. Oh, well.