I have 2 windows in my kitchen, would it be crazy to remove one?
This is really an opinion question so should be closed. 

I like windows but have both added them and removed them in the past. My suggestion would be to evaluate your lighting as you may need to add lights after removing a window. Dark rooms actually hurt sales especially kitchens and dining areas. So if you do remove the window (not crazy) make sure the area is still well illuminated and your new design may increase the value and functionality of your home. But I do think it is a good question + but off topic by our rules.