src/Ovh/Dedicated/Server/Server.php
public function deleteSecondaryDnsDomains($domain2delete){
        json_decode(self::getClient()->deleteSecondaryDnsDomains($this->getDomain(), $domain2delete));
        return true;
    }
public function deleteSecondaryDnsDomains($domain2delete){
        json_decode(self::getClient()->deleteSecondaryDnsDomains($this->getDomain(), $domain2delete));
        return true;
    }
Delete a domain on secondayr DNS server

@param $domain2delete
@return bool true
@throws Exception\ServerException
@throws \Ovh\Common\Exception\BadMethodCallException