Wisdom teeth do not always get in the way of orthodontic treatment, and you do not need to have them taken out before the consultation. In some cases they may need to be removed at a later stage, but there are also situations where the wisdom teeth are healthy and functional, which means they can stay in the mouth.
If your general dentist recommends removing them, you can go ahead, but this does not need to happen before the orthodontic consultation. In some cases a missing tooth can be replaced by a wisdom tooth, if the wisdom tooth's position allows it to be moved into line.
This answer is for general information. Your own case needs an examination by an orthodontist.