Delete hosts.

    .. versionadded:: 2016.3.0

    :param hostids: Hosts (hostids) to delete.
    :param _connection_user: Optional - zabbix user (can also be set in opts or pillar, see module's docstring)
    :param _connection_password: Optional - zabbix password (can also be set in opts or pillar, see module's docstring)
    :param _connection_url: Optional - url of zabbix frontend (can also be set in opts, pillar, see module's docstring)

    :return: IDs of the deleted hosts.

    CLI Example:
    .. code-block:: bash

        salt '*' zabbix.host_delete 10106

def host_delete(hostids, **kwargs):
    '''
    Delete hosts.

    .. versionadded:: 2016.3.0

    :param hostids: Hosts (hostids) to delete.
    :param _connection_user: Optional - zabbix user (can also be set in opts or pillar, see module's docstring)
    :param _connection_password: Optional - zabbix password (can also be set in opts or pillar, see module's docstring)
    :param _connection_url: Optional - url of zabbix frontend (can also be set in opts, pillar, see module's docstring)

    :return: IDs of the deleted hosts.

    CLI Example:
    .. code-block:: bash

        salt '*' zabbix.host_delete 10106
    '''
    conn_args = _login(**kwargs)
    ret = {}
    try:
        if conn_args:
            method = 'host.delete'
            if not isinstance(hostids, list):
                params = [hostids]
            else:
                params = hostids
            ret = _query(method, params, conn_args['url'], conn_args['auth'])
            return ret['result']['hostids']
        else:
            raise KeyError
    except KeyError:
        return ret