Hardware DLC

[CakeBuffet]

Hey all. I recently installed some DLC for Hyperdimension Neptunia Re;Birth1 and after a few minutes, I decided I didn't want to play the DLC. I did not save my game, I merely loaded up the game, played around for a few minutes, and then closed the game. Is it safe to simply erase the DLC from the addcont folder?

Thanks in advance.