perf(reactivity): no need to proxy has/ownKeys for readonly objects

packages/reactivity/src/baseHandlers.ts

@@ -174,8 +174,6 @@ export const mutableHandlers: ProxyHandler<object> = {
 
 export const readonlyHandlers: ProxyHandler<object> = {
   get: readonlyGet,
-  has,
-  ownKeys,
   set(target, key) {
     if (__DEV__) {
       console.warn(