Remove artificial image loading delay

Author: aurorascharff

src/content/reference/react/Suspense.md

@@ -3119,8 +3119,6 @@ export default function App() {
 
 ```js src/image.js hidden
 export async function fetchImageSrc() {
-  // Add a fake delay so the Suspense fallback is visible.
-  await new Promise(resolve => setTimeout(resolve, 1000));
   // Add a unique parameter so the image isn't cached.
   return 'https://react.dev/images/team/jack-pope.jpg?t=' + Date.now();
 }