Hardware voting doesn't make sense

There's a "Usability" vote for all projects, but you can't exactly try out a hackpad. Maybe this could be changed for hardware projects?

Start by locating where the Usability vote is defined and displayed, then trace how projects are classified as hardware projects. Confirm the intended behavior for hardware projects with a maintainer before changing it; done means hardware voting no longer presents an inapplicable Usability option while other project types retain their current voting behavior.

Written by the indexing model from the issue text.