They did not remove anything, it's just code.
And I said that it would be possible to do change the keybindings for it, not that you can, but it's possible to change it so that it can (it's an addition).
What I would consider a possibility, is that the "state" somehow didn't include some of the keybindings.
But, considering you couldn't do any of them regardless, try deleting KeyboardBinding.py and KeyboardBinding.pyc from scripts/
You have just resetted your keyboard bindings that way.