I made these mods which remove spells.
link
You can remove all spells from certain school or levels. You can for example limit research to level 4, or remove blood spells. Mainly for SP fun or enforce MP house rules.
Remove All Spells -mod still leaves level 0 and national spells castable even though those do not show in the research list.
-EDIT/UPDATE-
All Researched -mod now sets research level to 1, because command #researchlevel 0 does not seem to work.