By "tool set" you mean the quick settings shortcuts (as opposed to the "gear" icon shortcut to Settings, which you get if you swipe twice)? That's always been the default for the Pixel 2, so the real question is why you didn't have this all along?
Pull down again and you'll see a little pencil to edit the quick settings. You could try removing all of them. Of course that will mean you don't have the tiles when you pull down a second time, but it's all I can think of if you really don't want that single row when you pull down once.