turn webpack middleware into middleware

fix HMR middleware, and some loopback boilerplate cleanup

server/boot/webpack-dev.js

@@ -1,25 +0,0 @@
-const webpack = require('webpack');
-const webpackMiddleware = require('webpack-dev-middleware');
-const config = require('../config/webpack.dev');
-
-const isProduction = (process.env.NODE_ENV === 'production');
-
-module.exports = (app) => {
-  if (isProduction) return;
-
-  const compiler = webpack(config);
-  const middleware = webpackMiddleware(compiler, {
-    publicPath: config.output.publicPath,
-    contentBase: 'src',
-    stats: {
-      colors: true,
-      hash: false,
-      timings: true,
-      chunks: false,
-      chunkModules: false,
-      modules: false,
-    },
-  });
-
-  app.use(middleware);
-};

server/boot/webpack-hmr.js

@@ -1,13 +0,0 @@
-const webpack = require('webpack');
-const webpackHotMiddleware = require('webpack-hot-middleware');
-const config = require('../config/webpack.dev');
-
-const isProduction = (process.env.NODE_ENV === 'production');
-
-module.exports = (app) => {
-  if (isProduction) return;
-
-  const compiler = webpack(config);
-
-  app.use(webpackHotMiddleware(compiler));
-};