Revert Admin bar: Update the Edit Site link (#69974) (#70115)

Co-authored-by: Carolina Nymark <myazalea@hotmail.com>
Co-authored-by: carolinan <poena@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: aaronjorbin <jorbin@git.wordpress.org>
Co-authored-by: Marc-pi <mdxfr@git.wordpress.org>

Author: 5 people

lib/compat/wordpress-6.8/admin-bar.php

@@ -69,7 +69,7 @@ function gutenberg_is_experiment_enabled( $name ) {
 require __DIR__ . '/compat/plugin/fonts.php';
 
 // WordPress 6.8 compat.
-require __DIR__ . '/compat/wordpress-6.8/admin-bar.php';
+// Note: admin-bar.php (69271) was reverted in Gutenberg 20.8.0. See https://github.com/WordPress/gutenberg/pull/69974.
 require __DIR__ . '/compat/wordpress-6.8/preload.php';
 require __DIR__ . '/compat/wordpress-6.8/blocks.php';
 require __DIR__ . '/compat/wordpress-6.8/functions.php';