Notice of White Scroll Removal

So can you no longer use white scrolls? I think I have a couple, but I could just use them instead of exchange them (I was saving up to use a bunch at once hoping it wouldn't be as depressing because maybe some scrolls would work) unless they disabled them completely.

And what's a shield scroll? Is that where the item doesn't blow up when you enhance it and it fails? I haven't kept up on all their cash shop scrolling features. Shield scrolls might be better than white scrolls in that case.