Don't inherit from Ultimaker printers

resources/definitions/peopoly_moai.def.json

@@ -2,7 +2,6 @@
     "id": "peopoly_moai",
     "version": 2,
     "name": "Peopoly Moai",
-    "inherits": "ultimaker",
     "metadata": {
         "visible": true,
         "author": "fieldOfView",