Revert "net: remove usage of require('util')"

This reverts commit e112fb4.
This commit broke parallel/test-net-access-byteswritten.

PR-URL: #26896
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
Reviewed-By: Yongsheng Zhang <zyszys98@gmail.com>
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Refael Ackermann <refack@gmail.com>

lib/net.js

@@ -23,8 +23,7 @@
 
 const EventEmitter = require('events');
 const stream = require('stream');
-const { inspect } = require('internal/util/inspect');
-const { debuglog } = require('internal/util/debuglog');
+const util = require('util');
 const internalUtil = require('internal/util');
 const {
  isIP,
@@ -131,7 +130,7 @@ function getNewAsyncId(handle) {
 }
 
 
-const debug = debuglog('net');
+const debug = util.debuglog('net');
 
 function isPipeName(s) {
  return typeof s === 'string' && toNumber(s) === false;
@@ -336,8 +335,7 @@ function Socket(options) {
  this[kBytesRead] = 0;
  this[kBytesWritten] = 0;
 }
-Object.setPrototypeOf(Socket.prototype, stream.Duplex.prototype);
-Object.setPrototypeOf(Socket, stream.Duplex);
+util.inherits(Socket, stream.Duplex);
 
 // Refresh existing timeouts.
 Socket.prototype._unrefTimer = function _unrefTimer() {
@@ -1414,7 +1412,7 @@ Server.prototype.listen = function(...args) {
  'must have the property "port" or "path"');
  }
 
- throw new ERR_INVALID_OPT_VALUE('options', inspect(options));
+ throw new ERR_INVALID_OPT_VALUE('options', util.inspect(options));
 };
 
 function lookupAndListen(self, port, address, backlog, exclusive, flags) {