Disable billing address

[kobusp]

I sell digital products, and I do not need the billing address, just the email address of the buyer. I don't even want the address since it's PII and the less data I collect the better, for gdpr purposes. So I would very much like the option to disable the collection of the billing address on checkout!  Also this has a significant impact on conversion! So the sooner this would be an option, the better!