remove namespace xml in serialisation by XmlSerializerNamespaces.dot.net/C#/csharp

 public static string toXML(Object obj)
    {
        XmlSerializer xmlSerializer = new XmlSerializer(obj.GetType());
        StringWriter stringWriter = new StringWriter();
        XmlWriterSettings writerSettings = new XmlWriterSettings();
        writerSettings.OmitXmlDeclaration = true;
        writerSettings.Indent = true;


        using (XmlWriter xmlWriter = XmlWriter.Create(stringWriter, writerSettings))
        {
     
     // Namespace removed in these two lines:  
            XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
            ns.Add("", "");
            
     
     xmlSerializer.Serialize(xmlWriter, obj,ns);

        }
        return stringWriter.ToString();
    }

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