No, she surely doesn't need them at night. Reflux really changes everything as I'm sure you know but now that it's out of the picture it's time to sort things out.
What you need to do is switch those feeds from night to day. There are a few options on how to do it and you can choose whatever you think will work best for both of you.
You could go cold turkey at night and offer the milk during the day.
You could gradually reduce the amount you offer at night - see here
http://babywhispererforums.com/index.php?topic=46907.0You could drop one bottle cold turkey and then the other, or drop one and then reduce the other.
Just know that at her age she will probably not be impressed with the change, so whatever you decide to do, be sure you can commit to it and see it through.
welcome to the site