Block::unregister

static function unregister($codes)
{
	if (!is_array($codes))
	{
		$codes = [$codes];
	}

	$res = UpdateBlock::getList([
		'select' => [
			'ID'
		],
		'filter' => [
			'=CODE' => $codes
		]
	]);
	while ($row = $res->fetch())
	{
		UpdateBlock::delete($row['ID']);
	}
}