It's just a sticker so should peel off fairly easily. It will help if you have long finger nails, otherwise carefully use a small flathead screw driver or blade to get the corners started. Personally I think it looks like crap with the sticker removed though. I've seen Corollas without it before and it just makes it look bland and incomplete. It tends to subtly break everything up too. Your choice though :thumbsup:
Mine never had the "Toyota" badge on the trunk lid's right side, just the Toyota logo. I never knew this until I visited this site and think it looks a ton better given it already has the Corolla on the trunk plate between the lights. Only debadging I would do though.