With DD1 we cut back to a warm (or cold depending on weather) milk with breakfast then some days she would have a biscuit & milk in the afternoon but she dropped her own night time bottle around 12mths.

If she wakes over night can you give her water slightly warmed and rather than a bottle of milk?

I second that if she is filling up on milk she will tend to eat less, we found that DD1 did that so we only ever offered the bottle either 30-40min BEFORE food (even up to an hour) OR she didn't get it until after food, even then we would try and allow roughly 30min for food to settle.