Follow-up to #73580: Fix classic theme style path

Author: t-hamano

lib/client-assets.php

@@ -400,12 +400,12 @@ function gutenberg_register_packages_styles( $styles ) {
 	gutenberg_override_style(
 		$styles,
 		'classic-theme-styles',
-		gutenberg_url( 'build/styles/block-library/classic.css' ),
+		gutenberg_url( 'build/block-library/classic.css' ),
 		array(),
 		$version
 	);
 	$styles->add_data( 'classic-theme-styles', 'rtl', 'replace' );
-	$styles->add_data( 'classic-theme-styles', 'path', gutenberg_dir_path() . 'build/styles/block-library/classic.css' );
+	$styles->add_data( 'classic-theme-styles', 'path', gutenberg_dir_path() . 'build/block-library/classic.css' );
 
 	gutenberg_override_style(
 		$styles,