意味を成してなかった要素を削除

stateBox/useTrainMenu.js

@@ -10,8 +10,6 @@ const initialState = {
   setSelectedLine: () => {},
   mapsStationData: undefined,
   setMapsStationData: () => {},
-  injectJavaScript: "",
-  setInjectJavaScript: () => {},
   iconSetting: undefined,
   setIconSetting: () => {},
   mapSwitch: undefined,
@@ -40,8 +38,6 @@ export const useTrainMenu = () => {
 export const TrainMenuProvider = ({ children }) => {
   const [selectedLine, setSelectedLine] = useState(undefined);
   const [mapsStationData, setMapsStationData] = useState(undefined);
-  const [injectJavaScript, setInjectJavaScript] = useState();
-
   useEffect(() => {
     getStationList2().then(setMapsStationData);
   }, []);
@@ -88,8 +84,6 @@ export const TrainMenuProvider = ({ children }) => {
         setSelectedLine,
         mapsStationData,
         setMapsStationData,
-        injectJavaScript,
-        setInjectJavaScript,
         iconSetting,
         setIconSetting,
         mapSwitch,