Remove unused postsSlice

Author: markerikson

src/app/store.js

@@ -1,12 +1,10 @@
 import { configureStore } from '@reduxjs/toolkit'
 
-import postsReducer from '../features/posts/postsSlice'
 import notificationsReducer from '../features/notifications/notificationsSlice'
 import { apiSlice } from '../features/api/apiSlice'
 
 export default configureStore({
   reducer: {
-    posts: postsReducer,
     notifications: notificationsReducer,
     [apiSlice.reducerPath]: apiSlice.reducer,
   },