Revert "Adopt bvaughn's example"

This reverts commit 2e1554d.

Author: koba04

examples/16-3-release-blog-post/forward-ref-example.js

@@ -20,21 +20,9 @@ function withTheme(Component) {
   // We can pass it along to ThemedComponent as a regular prop, e.g. "forwardedRef"
   // And it can then be attached to the Component.
   // highlight-range{1-3}
-  function refForwarder(props, ref) {
-    return (
-      <ThemedComponent {...props} forwardedRef={ref} />
-    );
-  }
-
-  // These next lines are not necessary,
-  // But they do give the component a better display name in DevTools,
-  // e.g. "ForwardRef(withTheme(MyComponent))"
-  // highlight-range{1-2}
-  const name = Component.displayName || Component.name;
-  refForwarder.displayName = `withTheme(${name})`;
-
-  // highlight-next-line
-  return React.forwardRef(refForwarder);
+  return React.forwardRef((props, ref) => (
+    <ThemedComponent {...props} forwardedRef={ref} />
+  ));
 }
 
 // highlight-next-line