Deleting Hole Series and Hole Wizard in assemblies

I am working on an assembly and just learned I can add holes with hole series and hole wizard. Pretty cool. I'm learning it as I apply it. I messed up on the locations of a couple holes. I tired editing the location in edit feature, but it leaves the original hole that was already made. I have tried deleting the features in the assembly tree, but the hole stay there. Does anyone know how to delete these features?