Merge pull request #6324 from mikach/patch-3

Clean up unused code

docs/src/pages/configurations/typescript-config/index.md

@@ -24,8 +24,7 @@ We have had the best experience using `awesome-typescript-loader`, but other tut
 We first have to use the [custom Webpack config in full control mode, extending default configs](/configurations/custom-webpack-config/#full-control-mode--default) by creating a `webpack.config.js` file in our Storybook configuration directory (by default, it’s `.storybook`):
 
 ```js
-const path = require('path');
-module.exports = ({ config, mode }) => {
+module.exports = ({ config }) => {
   config.module.rules.push({
     test: /\.(ts|tsx)$/,
     use: [