I've added a new mod, designed for Public Server Admins like myself - Sam's No Admin Items. This removes all the dev/admin items like the Super Digger, the One-Hit Kill pistol, the new Nuke grenade, and the Loadouts.
If you do need to use any of the items to admin your server, I'd recommend adding them back in manually, with a custom name, hidden from the creative menu, and spawning them in using the console.
Download link in the first post.