remove unused imports in playground

playground/pages/index.vue

@@ -1,13 +1,4 @@
 <script setup lang="ts">
-import { TRPCClientError, TRPCClientErrorLike } from '@trpc/client'
-import type { inferRouterOutputs } from '@trpc/server'
-import type { AppRouter } from '@/server/trpc/routers'
-
-type RouterOutput = inferRouterOutputs<AppRouter>
-type GetTodosOutput = RouterOutput['todo']['getTodos']
-
-type ErrorOutput = TRPCClientError<AppRouter>
-
 const { $client } = useNuxtApp()
 
 const addTodo = async () => {