Yoast SEO - убираем теги <image:image> для Yandex

functions.php

function yoast_clear_sitemap( $output, $url ) {
	
	$timezone = new WPSEO_Sitemap_Timezone();
	
	$date = null;
	
	if ( ! empty( $url['mod'] ) ) {
		$date = $timezone->format_date( $url['mod'] );
	}

	$url['loc'] = htmlspecialchars( $url['loc'] );

	$output = "\t<url>\n";
	$output .= "\t\t<loc>" . $url['loc'] . "</loc>\n";
	$output .= empty( $date ) ? '' : "\t\t<lastmod>" . htmlspecialchars( $date ) . "</lastmod>\n";
	$output .= "\t\t<changefreq>" . $url['chf'] . "</changefreq>\n";
	$output .= "\t\t<priority>" . str_replace( ',', '.', $url['pri'] ) . "</priority>\n";

	unset($url['images']);

	$output .= "\t</url>\n";
	
	return $output;
}
add_filter( 'wpseo_sitemap_url','yoast_clear_sitemap', 10 , 2 );