The original poster want to lose body fat, not water and electrolytes. In fact, if you take stuff out of the body besides fat, that the fat percentage of the body increases.
The things you suggested are bad for your health. If your coach has half a brain, he'd be shocked that you do this. Next you going to tell him to throw up after each meal?
What is the point of losing water weight? Since when did dehydration become a good thing?