Remove remaining references to version-specific data directories

Export/Scripts/masters.lua

@@ -36,7 +36,7 @@ local itemClassMap = {
 	["Rune Dagger"] = "Dagger",
 	["Warstaff"] = "Staff",
 }
-local out = io.open("../Data/3_0/ModMaster.lua", "w")
+local out = io.open("../Data/ModMaster.lua", "w")
 out:write('-- This file is automatically generated, do not edit!\n')
 out:write('-- Item data (c) Grinding Gear Games\n\nreturn {\n')
 for _, craft in ipairs(dat("CraftingBenchOptions"):GetRowList("IsDisabled", false)) do