Index: trunk/src/wp-includes/interactivity-api/class-wp-interactivity-api.php
===================================================================
--- trunk/src/wp-includes/interactivity-api/class-wp-interactivity-api.php	(revision 62458)
+++ trunk/src/wp-includes/interactivity-api/class-wp-interactivity-api.php	(revision 62499)
@@ -1087,6 +1087,5 @@
 	private function data_wp_class_processor( WP_Interactivity_API_Directives_Processor $p, string $mode ) {
 		if ( 'enter' === $mode ) {
-			$all_class_directives = $p->get_attribute_names_with_prefix( 'data-wp-class--' );
-			$entries              = $this->get_directive_entries( $p, 'class' );
+			$entries = $this->get_directive_entries( $p, 'class' );
 			foreach ( $entries as $entry ) {
 				if ( empty( $entry['suffix'] ) ) {