Something that is used by few but required by agency. For example, the directions on how to use Reddi-Wip (whipped cream in a canister) takes up most of the backside of a Reddi-Wip can, however, I would bet most people never read these directions. I bet the same could be said for the ingredients of consumables that could surely be replaced by a QR code. Unnecessary is a fit, however, it does not imply a requirement by agency.
Example sentence:
Unfortunately, the ________ verbiage can't be removed.