Remove some unused constants.
Remove some unused constants.

asiekierka/inventory-tweaks,PrinceOfAmber/inventory-tweaks,TGNThump/inventory-tweaks,Vexatos/inventory-tweaks,mrammy/inventory-tweaks,TGNThump/inventory-tweaks,TerraGamingNetwork/inventory-tweaks,PrinceOfAmber/inventory-tweaks,TerraGamingNetwork/inventory-tweaks,Kobata/inventory-tweaks,Vexatos/inventory-tweaks,asiekierka/inventory-tweaks,GuntherDW/inventory-tweaks-liteloader,GuntherDW/inventory-tweaks-liteloader,mrammy/inventory-tweaks