I did not. My DD NW herself at about 18 m/o and we still have a couple days a month she needs to nurse anyway. (21 m/o now)
My niece is 25 m/o and was strictly FF and now on cows milk and hasn't had milk at night since 6 m/o and she still wakes 2-3 x a night!
To me night wakings are less about nursing and more about development. All babies/kids will STTN when ready unless of course you "train them" which I think most people on here are against (myself included, my DD is no dog!)
You may night wean and she will still be up and you just have to rock her to sleep or w/e instead of nursing...to me that is a lot harder. I like to think of my breasts as a tool to help night wakings diffuse faster