u/New_Butterscotch8590

Hi all, I have a question about deleting rockbox off of an ipod. I've been looking for an ipod secondhand to get my friend as a gift for their birthday and have been doing some research on what to look for. I found a 7th gen 160gb ipod on Facebook market recently and after talking with the seller he said that he has rockbox already installed on it, but I was hoping to give my friend something with a clean slate. Is there a way to delete rockbox off the ipod? I am a newbie to this so pls don't hate I already tried to google it.