Dropping dream feed? Lo

Hi! My LO just turned 4 months old and has been growing great! Previously was BF and in the last month and a half went to bottles due to going back to work/flow preference. She eats 5 oz 6 times a day with the 6th being the “dream feed” at 930-10 pm. Due to low supply she gets half formula half BM

I’m not sure she still needs it, she is pretty angry when I get her out of bed and often refuses the last oz or so of the feed. Would I just drop the feed and see what happens or add an oz to all of her feeds to make it up?