Ticket #57594: 57594.patch

src/wp-content/themes/twentytwentyone/functions.php

@@ -340 +340 @@
                 add_theme_support( 'custom-units' );
 
                 // Remove feed icon link from legacy RSS widget.
-                add_filter( 'rss_widget_feed_link', '__return_false' );
+                add_filter( 'rss_widget_feed_link', '__return_empty_string' );
         }
 }
 add_action( 'after_setup_theme', 'twenty_twenty_one_setup' );

src/wp-includes/widgets/class-wp-widget-rss.php

@@ -101 +101 @@
                         /**
                          * Filters the classic RSS widget's feed icon link.
                          *
-                         * Themes can remove the icon link by using `add_filter( 'rss_widget_feed_link', '__return_false' );`.
+                         * Themes can remove the icon link by using `add_filter( 'rss_widget_feed_link', '__return_empty_string' );`.
                          *
                          * @since 5.9.0
                          *
-                         * @param string $feed_link HTML for link to RSS feed.
-                         * @param array  $instance  Array of settings for the current widget.
+                         * @param string|false $feed_link HTML for link to RSS feed.
+                         * @param array        $instance  Array of settings for the current widget.
                          */
                         $feed_link = apply_filters( 'rss_widget_feed_link', $feed_link, $instance );