I wikipedia-ed it. Is "Congoid" supposed to be the current substitute?
The problem with the term "Negroid" is that it classifies a race by color of skin rather than from original location. If you say that's the reason why the term shouldn't be used... "Asian" shouldn't be used either at it groups people from many regions into one big category.
I try to refrain from saying "white," "black," "brown," "yellow."
What word would you have me use?