Fixing compilation warnings.

src/components/map/tiled-map.tsx

@@ -1,5 +1,5 @@
 import react from 'react';
-import { useDispatch, useSelector } from 'react-redux';
+import { useSelector } from 'react-redux';
 import { MapState } from '../../store/map';
 import Tile from './tile';
 
@@ -8,8 +8,7 @@ import _ from 'lodash';
 
 export const tileSize = 256;
 
-const TiledMap: react.FC<{}> = (props: {}) => {
+const TiledMap: react.FC<{}> = () => {
-  const dispatch = useDispatch();
 
   const tilesState = useSelector((state: { map: MapState }) => state.map.tiles);
   console.log(`tilesState: ${JSON.stringify(tilesState)}`);