add_filter( 'aioseo_breadcrumbs_show_current_item', 'aioseo_breadcrumbs_show_current_item', 10, 3 );

function aioseo_breadcrumbs_show_current_item( $showCurrentItem, $type, $reference ) {

	if ( is_singular( 'page' ) ) {

		$showCurrentItem = false;

	}

	return $showCurrentItem;

}