I also have a 1.9, with the EGR deleted, but I kept the ASV valve, alot of the EGR kits keep the asv valve so the car shuts off without jerking too much, I also think its very important when it comes to diesel run away.
One thing which confuses me, is that the newer CFGB engine doesn't have flaps to induce swirl of the air into the cylinder, and the vacuum on the egr system to suck cooled EGR into the cylinder as a result of the closed flap, I would have thought this system to be quite important for egr flow etc after watching audis demo video.
Unless the newer engines don't have the system because vw thought it was unnecessary or just cutting costs... who knows!