feat(Browser): remove browser � (#5113)

src/WebSocket.js

@@ -1,7 +1,5 @@
 'use strict';
 
-const { browser } = require('./util/Constants');
-
 let erlpack;
 
 try {
@@ -9,15 +7,7 @@ try {
   if (!erlpack.pack) erlpack = null;
 } catch {} // eslint-disable-line no-empty
 
-let TextDecoder;
-
-if (browser) {
-  TextDecoder = window.TextDecoder; // eslint-disable-line no-undef
-  exports.WebSocket = window.WebSocket; // eslint-disable-line no-undef
-} else {
-  TextDecoder = require('util').TextDecoder;
-  exports.WebSocket = require('ws');
-}
+exports.WebSocket = require('ws');
 
 const ab = new TextDecoder();
 
@@ -42,7 +32,6 @@ exports.create = (gateway, query = {}, ...args) => {
   query = new URLSearchParams(query);
   if (q) new URLSearchParams(q).forEach((v, k) => query.set(k, v));
   const ws = new exports.WebSocket(`${g}?${query}`, ...args);
-  if (browser) ws.binaryType = 'arraybuffer';
   return ws;
 };