Incase you want to remove it all together:
NTPOG 5th Gen Rear Deck Replacement
Why?
You've got a base Prelude and you had the dealer install the factory rear spoiler because the car looks better with it. Now you're stuck with a center brake light inside the car. If you're lucky, the dealer was smart enough to disconnect it, if not, you've got two center brake lights (the original PLUS the one on the spoiler).. that doesn't look quite right either way.