Negatory, They are not being removed. The new synths will simply not require that you have them.

Just in case your not aware of how they function now. Not possessing the recommended skill book causes your success rate per action to take a bit of a hit. Its functionally the same thing with synthesis support only not as severe (the game seems to be a bit more forgiving if you have any tier of support)

It seems like they will be shifting it so you will have a baseline fail/success rate (other math magic not withstanding) with support/books acting as well shockingly enough bonuses. at least that's my take on it.