Yes, it seems to be working now. There's no way to hide that box. You can move the code for it (about 10 lines) anywhere on the page, if you like. The code does auto-fill but just with the item name. That is probably OK for the title but google likes more descriptive text for the meta description and if you don't provide one they like, they may make up their own. So I suggest checking a few products after they have been updated on google to see if you need to change that or not.