"To remove the excess" means getting rid of anything that is more than necessary or desired. It refers to eliminating or reducing something that is considered extra, unnecessary, or surplus. Full definition
You should start by removing the excess water by rubbing your dog down with a towel — this will make the drying process much quicker. (mypetneedsthat.com)
But, unlike the other formulas, this cleansing solution can also help remove excess oil from the skin's surface making it key for oily skin types. (skincare.com)
Turn the heat up to medium and let the quinoa cook for just a moment to remove any excess moisture from the cooking process. (namelymarly.com)