删除 Delete

Delete命令通过主键来定位条目，并从数据库中删除该条目。

举例：

<Civilizations>
    <Delete CivilizationType="CIVILIZATION_AMERICA"/>
</Civilizations>

或

<Civilizations>
    <Delete>
        <CivilizationType>CIVILIZATION_AMERICA</CivilizationType>
    </Delete>
</Civilizations>