Can one remove certain spells from the game via a mod?

[tinkthank]

Sorry, I dont understand modding well yet -- can one remove some spells? I personally am sick of losing Celestial Masters to Breath of Winter, and would settle for having it removed from the game until spellcasting AI is fixed further. Would this be possible? And if so, could someone with time on his or her hands tell me how to do it? Thank you.