Will I lose weight by removing drinks which have lots of calories and sugar in them?

BlueSkyShoal

You'll absolutely drop weight by dropping the soda (as long as you don't suddenly start eating 900 calories worth of something else.) The human body has trouble recognizing "drink calories" as food (in the sense of, it has trouble deriving a sense of fullness or satiety from drinks), so I think it will be much easier to still feel "full" than it would if you were cutting 900 calories of solid food out of your diet.

apullum

It will likely help a lot, but it won't guarantee that you lose weight unless it puts you in a calorie deficit. Track your food and drink intake, make sure you're in a deficit.