How to remove F1

Hello,
i would like to remove F1 bind (i dont want fps, graph show on that bind)

reason:
i'm playing rpg games like for more than 10 years and i always had spells on F-keys


now:
when i bind F1 to cast spell (it will cast it but graph will be show) :S

You can use a third party program like AutoHotKey to rebind your F1 key while you're in game. You might want to swap F1 with F10 or some other key which hardly gets used so you can still type normally.