refactor: remove unused Redux store hooks

Delete obsolete Redux store configuration files as part of
the Zustand migration. These files are no longer referenced
after the store refactor.

src/store/hooks.ts

@@ -1,5 +0,0 @@
-import { useDispatch, useSelector, type TypedUseSelectorHook } from "react-redux";
-import type { RootState, AppDispatch } from "./index";
-
-export const useAppDispatch = () => useDispatch<AppDispatch>();
-export const useAppSelector: TypedUseSelectorHook<RootState> = useSelector;

src/store/index.ts

@@ -1,8 +0,0 @@
-import { configureStore } from "@reduxjs/toolkit";
-
-export const store = configureStore({
-  reducer: {},
-});
-
-export type RootState = ReturnType<typeof store.getState>;
-export type AppDispatch = typeof store.dispatch;