This removes the transaction structure fields from ZIP 226 in favour
of adding them to ZIP 230, for the v6 Transaction Format.
Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
Co-authored-by: Daira-Emma Hopwood <daira@jacaranda.org>
Co-authored-by: str4d <thestr4d@gmail.com>
Co-authored-by: Paul <lauxpaul@protonmail.com>
Co-authored-by: Antoine Rondelet <rondelet.antoine@gmail.com>
Co-authored-by: Constance Beguier <constance@qed-it.com>