Maybe you need to increase her meal sizes? She may not be getting enough at the meal times, making her more hungry during the day.
Jesse's still on 3 bottles of milk and has 3 meals. He's on cows though. But he likes it, still eats all his meals and its only milk i think. Some days he doesnt always finish the lunch time one but usually has a full bottle in the morning and at night. As long as he's getting his nutrition from his meals it honestly doesnt bother me how much milk he has.

But if you dont want her having that much, as i guess formula is different to cows, then just dont give it to her. When she demands it, doesnt mean you have to give. Give her a stick of cheese or something instead. If shes hungry she'll eat it, if not then shes just using the bottle as a comfort thing. Otherwise she'll learn how to get what she wants.. just yell and scream and youll give.