*Not* using redux for mouseState.

src/store/index.ts

@@ -1,10 +1,9 @@
 import { configureStore } from '@reduxjs/toolkit';
 
 import slippyReducer from './slippy';
-import mouseHandlerReducer from './mouse-handler';
 
 const store = configureStore({
-  reducer: { slippy: slippyReducer, mouseHandler: mouseHandlerReducer },
+  reducer: { slippy: slippyReducer},
 });
 
 export default store;

src/store/mouse-handler.ts

@@ -1,25 +0,0 @@
-import { createSlice } from '@reduxjs/toolkit';
-
-
-const initialMouseState = {
-    down: false,
-    starting: { x: -1, y: -1 },
-    timestamp:0,
-  };
-
-const mouseHandlerSlice = createSlice({
-  name: 'mouseHandler',
-  initialState: initialMouseState,
-  reducers: {
-    init(state) {
-      return initialMouseState;
-    },
-    set(state, action) {
-      return action.payload;
-    },
-  },
-});
-
-export const mouseHandlerActions = mouseHandlerSlice.actions;
-
-export default mouseHandlerSlice.reducer;