CZ still offers the Kadet pistol. Got mine about a year ago. Actually, it says Kadet 2 on the slide.
I think CZ just announced, in recent weeks, that the Kadet pistol (not the kit) would be dropped. (Apparently, the demand was for the Kit and not for the complete pistol.)
Make sense, actually, as you can buy a kit for a 9mm or .40 CZ 75B, but you can't buy a slide in 9mm for the Kadet Kit -- even though the frames of the 9mm and the .22 versions are identical.