It doesn't, but because the IME is so undocumented and most firmwares are so horribly written its dangerous to remove these parts of the firmware image because

It doesn't, but because the IME is so undocumented and most firmwares are so horribly written its dangerous to remove these parts of the firmware image because it might brick your system for completely nonsense reasons (all it takes is the firmware randomly misaddressing into an IME area where there is now no data and failing to make your system unrecoverable without the ability to operate on the flash chip by hand). Make sure someone else has managed it with your same board to know it works.