I remember that one was a case of our version being newer, actually - they removed that 3rd definition. (considered it offensive I guess)
I don't have the old file handy anymore so I can't check on whether 挂科 was likewise removed, though it very well might have been - given how overworked everyone at Apple seems to be lately I have a hard time thinking they came up with the staff time to do a lot of revising of OCD.