Remove unused demo webpack config

demo/webpack.config.js

@@ -1,62 +0,0 @@
-/**
- * Copyright (c) 2019 The xterm.js authors. All rights reserved.
- * @license MIT
- */
-
-// @ts-check
-
-const path = require('path');
-
-/**
- * This webpack config does a production build for xterm.js. It works by taking the output from tsc
- * (via `yarn watch` or `yarn prebuild`) which are put into `out/` and webpacks them into a
- * production mode umd library module in `lib/`. The aliases are used fix up the absolute paths
- * output by tsc (because of `baseUrl` and `paths` in `tsconfig.json`.
- *
- * @type {import('webpack').Configuration}
- */
-const config = {
-  entry: path.resolve(__dirname, 'client.ts'),
-  devtool: 'inline-source-map',
-  module: {
-    rules: [
-      {
-        test: /\.tsx?$/,
-        use: 'ts-loader',
-        exclude: /node_modules/
-      },
-      {
-        test: /\.js$/,
-        use: ["source-map-loader"],
-        enforce: "pre",
-        exclude: /node_modules/
-      }
-    ]
-  },
-  resolve: {
-    modules: [
-      'node_modules',
-      path.resolve(__dirname, '..'),
-      path.resolve(__dirname, '../addons')
-    ],
-    extensions: [ '.tsx', '.ts', '.js' ],
-    alias: {
-      common: path.resolve('./out/common'),
-      browser: path.resolve('./out/browser')
-    },
-    fallback: {
-      // The ligature modules contains fallbacks for node environments, we never want to browserify them
-      stream: false,
-      util: false,
-      os: false,
-      path: false,
-      fs: false
-    }
-  },
-  output: {
-    filename: 'client-bundle.js',
-    path: path.resolve(__dirname, 'dist')
-  },
-  mode: 'development'
-};
-module.exports = config;