chore: minor tweaks and run prettier

src/utils/mountCodeExample.js

@@ -1,36 +0,0 @@
-/**
- * Copyright (c) 2013-present, Facebook, Inc.
- *
- * @emails react-core
- */
-
-import CodeEditor from '../components/CodeEditor';
-import React from 'react';
-import ReactDOM from 'react-dom';
-
-// TODO This is a huge hack.
-// Remark transform this template to split code examples and their targets apart.
-const mountCodeExample = (containerId, code) => {
-  const container = document.getElementById(containerId);
-  const parent = container.parentElement;
-
-  const children = Array.prototype.filter.call(
-    parent.children,
-    child => child !== container,
-  );
-  children.forEach(child => parent.removeChild(child));
-
-  const description = children
-    .map(child => child.outerHTML)
-    .join('')
-    .replace(/`([^`]+)`/g, '<code>$1</code>');
-
-  ReactDOM.render(
-    <CodeEditor code={code}>
-      {<div dangerouslySetInnerHTML={{__html: description}} />}
-    </CodeEditor>,
-    container,
-  );
-};
-
-export default mountCodeExample;