renk mavi nasıl delete xml bloğu (otomobil)?

<?xml version="1.0"?>
<cars>
    <car>
        <color>blue</color>
        <name>jonas</name>
    </car>
    <car>
        <color>green</color>
        <name>123</name>
    </car>
    <car>
        <color>red</color>
        <name>1234</name>
    </car>
</cars>