Yes, you can remove them or leave them on. As you like.

I have given another answer here with the advice NOT to remove this foil. Now it has been deleted. What is this? This is the matt coating of the panel. It must not be removed under any circumstances! I just want to stop other people with the same question from making a mistake and damaging the unit. Brimstone made a wrong statement and this was accepted as an answer. So again: Do not remove what looks like a protective film. This would not be a warranty case and there are already enough poor people in other forums who have damaged their screen in this way.