remove useSubscription

-import React, { useEffect } from "react";
-import { useMutation, useQuery, useSubscription } from "@apollo/react-hooks";
+import React from "react";
+import { useMutation, useQuery } from "@apollo/react-hooks";
 import ChatPresenter from "./ChatPresenter";
 import { withRouter } from "react-router-dom";
 import {
@@ -15,9 +15,6 @@ export default withRouter(({ location }) => {
   const { pathname } = location;
   const roomName = pathname.slice(1, pathname.length);
   const [createMsg] = useMutation(CREATE_MESSAGE);
-  const { data: subMessage } = useSubscription(SUBSCRIPTION_MSG);
-
-  console.log("subMessage : ", subMessage);
 
   const message = useInput("");
 
@@ -46,15 +43,12 @@ export default withRouter(({ location }) => {
     messageArray = messageList;
   }
 
-  let testObj;
-  testObj = subscribeToMore({
-    document: subMessage,
+  let resultObj = subscribeToMore({
+    document: SUBSCRIPTION_MSG,
     updateQuery: (prev, { subscriptionData }) => {
-      console.log("prev : ", prev);
-      console.log("subscriptionData : ", subscriptionData);
+      if (!subscriptionData.data) return prev;
     },
   });
-  console.log(testObj);
 
   const onSubmit = async (e) => {
     e.preventDefault();
@@ -75,8 +69,6 @@ export default withRouter(({ location }) => {
     }
   };
 
-  useEffect(() => {});
-
   return (
     <ChatPresenter
       location={location}