If you're 6'-7" and 233 pounds, you probably don't have a lot of body fat. If that's the case, you could always try amputating a leg or dehydrating yourself to dangerous levels.
Fill us in on body type, current diet and we'll tell you if it's feasible, and, if so, what to stop eating/start doing. In actuality, 30 lbs. over a 6'-7" frame might not be too bad, depending on what you look like. Why 207? That's seems like an odd number, but admittedly, I don't know much about the weight class cut-offs for the various sports.