fix lint

Author: ajivanyandev

packages/dx-demo-shell/src/demo-viewer/demo-viewer.jsx

@@ -196,7 +196,6 @@ export class DemoViewer extends React.Component {
                                     <div className="alert-note">
                                       <div>
                                         <div className="part-title">Migrate to DevExtreme React</div>
-                                        
                                         DevExtreme Reactive UI component libraries have reached end-of-life. If you&apos;re building a React app, consider our up-to-date DevExtreme React UI suite. For additional information, visit the&nbsp;
                                         <a
                                           href="https://js.devexpress.com/React/Documentation/24_2/Guide/React_Components/Migrate_from_DevExtreme_Reactive/"