continued webpack4 port: update to recent build packages, remove unused packages, production webpack port

client/server/production.js

@@ -1,32 +0,0 @@
-/* eslint-disable */
-// jshint esversion: 6
-var path = require("path");
-var fs = require("fs");
-var chalk = require("chalk");
-var express = require("express");
-var favicon = require("serve-favicon");
-var utils = require("./utils");
-
-var PORT = process.env.PORT || 80;
-
-// Launch server
-var app = express();
-
-app.use(express.static("./build"));
-
-app.use(favicon("./build/favicon.png"));
-
-app.get("*", (req, res) => {
-  res.sendFile(path.resolve("./build/index.html"));
-});
-
-app.listen(PORT, err => {
-  if (err) {
-    console.log(err);
-    return;
-  }
-
-  utils.clearConsole();
-  console.log(chalk.cyan("Production server started on port " + PORT));
-  console.log();
-});