To get rid of namespaces in XLinQ queries, use similar method mentioned below:
String xml_string = @"
XXX
YYY
ZZZ
";
var query = XElement.Parse(xml_string).Descendants()
.Where(c => c.Name.LocalName.ToString() == "name")
.ToArray();
foreach (String item in query)
{
Console.WriteLine(item);
}