Do you want to remove Songs of Innocence from your account?

Apple:

If you would like U2’s Songs of Innocence removed from your iTunes music library and iTunes purchases, you can choose to have it removed. Once the album has been removed from your account, it will no longer be available for you to redownload as a previous purchase. If you later decide you want the album, you will need to get it again. The album is free to everyone until October 13, 2014 and will be available for purchase after that date.

Here you go.