RankMath Hide Schema

/**
 * Filter to modify Rank Math product schema data
 * Replace $schema_type with schema name like article, review, etc.
 * @param array $entity Snippet Data
 * @return array
 */
add_filter( "rank_math/snippet/rich_snippet_product_entity", function( $entity ) {
	if ( ! empty( $entity['offers'] ) ) {
		foreach ( $entity['offers'] as $key => $item ) {
			unset($entity['offers'][$key]['price']);
		}
	}
	return $entity;
});