How to remove all namespaces from XML with C#?

Question

I am looking for the clean, elegant and smart solution to remove namespacees from all XML elements? How would function to do that look like?

Defined interface:

Answer 1

This is a solution based on Peter Stegnar's accepted answer.

I used it, but (as andygjp and John Saunders remarked) his code ignores attributes.

I needed to take care of attributes too, so I adapted his code. Andy's version was Visual Basic, this is still c#.

I know it's been a while, but perhaps it'll save somebody some time one day.

    private static XElement RemoveAllNamespaces(XElement xmlDocument)
    {
        XElement xmlDocumentWithoutNs = removeAllNamespaces(xmlDocument);
        return xmlDocumentWithoutNs;
    }

    private static XElement removeAllNamespaces(XElement xmlDocument)
    {
        var stripped = new XElement(xmlDocument.Name.LocalName);            
        foreach (var attribute in
                xmlDocument.Attributes().Where(
                attribute =>
                    !attribute.IsNamespaceDeclaration &&
                    String.IsNullOrEmpty(attribute.Name.NamespaceName)))
        {
            stripped.Add(new XAttribute(attribute.Name.LocalName, attribute.Value));
        }
        if (!xmlDocument.HasElements)
        {
            stripped.Value = xmlDocument.Value;
            return stripped;
        }
        stripped.Add(xmlDocument.Elements().Select(
            el =>
                RemoveAllNamespaces(el)));            
        return stripped;
    }