"Reagents useful for:" Tooltip - removing it?

[ChaosWolf]

Does anyone know what tooltip addon operates the little mini-tooltip when you mouseover an item that is a reagent for a tradeskill, and displays the test quoted in my subject-line? It's a bit bothersome, as mine keeps "sticking" in place even after the rest of the tooltip vanishes, and I have to mouseover something else to get rid of it.

what is it, and how do I turn it off? Outside of the MazzleUI stuff, my only addon is AuctioneerAdv, and I'm fairly sure that's not what's causing it.