CIMRestService::diskFileDelete

static function diskFileDelete($arParams, $n, CRestServer $server)
{
	$arParams = array_change_key_case($arParams, CASE_UPPER);

	$chatId = intval($arParams['CHAT_ID']);
	if ($chatId <= 0)
	{
		throw new BitrixRestRestException("Chat ID can't be empty", "CHAT_ID_EMPTY", CRestServer::STATUS_WRONG_REQUEST);
	}

	$fileId = isset($arParams['FILE_ID'])? intval($arParams['FILE_ID']): intval($arParams['DISK_ID']);
	if ($fileId <= 0)
	{
		throw new BitrixRestRestException("File ID can't be empty", "FILE_ID_EMPTY", CRestServer::STATUS_WRONG_REQUEST);
	}

	return CIMDisk::DeleteFile($chatId, $fileId);
}