code: public function deleteIncoming($domain, $id)
      {
          if (!$domain)
              throw new BadMethodCallException('Parameter $domain is missing.');
          if (!$id)
              throw new BadMethodCallException('Parameter $id is missing.');
          try {
              $this->delete('sms/' . $domain . '/incoming/' . $id)->send();
          } catch (\Exception $e) {
              throw new SmsException($e->getMessage(), $e->getCode(), $e);
          }
          return true;
      }
docs: Delete the sms history given
  
  @param string $domain
  @param int $id
  @return bool true‡
  @throws \Ovh\Common\Exception\BadMethodCallException
  @throws Exception\SmsException