Remove Clear Demimateria I through III from the loot tables

[mayonnegg]

While we are removing 'pointless junk' lets also remove failure. It just waste my time and gil for the sake of more grind. In fact every time I desynth I want Fieldcraft IIIs to fly out.

The point is that clear demimaterias are basically an extra failure option thrown in, rather than a benefit. And tbh it's hard to argue that RNG grind is a good thing.