Well, now that it is gone, I guess you have to just buckle down and go with the flow this weekend. I would imagine I will be hard for probably a week. I did the exact same thing with my 1st daughter at 17 mos, cold turkey. She cried hard at naptime and bedtime for a week and a half. I almost gave in, I felt so bad. I tried to de-binkie my 2nd daughter at about 19 mos. which she was only using at night and for naps. She really had a hard time, crying and was truly distraught. I checked my motives and honestly I made the decision to give it back to her the same day I took it away. I told her "mommy made a mistake." She is now almost 28 mos. and I have been snipping the end off the paci nipple a little bit more every week. She hardly uses it now. She does have a favorite blankie too still.
I think that if you really want it gone, then stick to your guns and wait it out. It will be hard, but whenever we help our kids go to the next level, there is pain involved, for them and for us! Hang in there, you can do it and so can she! :)