How to remove namespace attribute in the output xml file

[abelkina]

Hello,
I think I have troubles with the namespace in the elements and attributes declaration, but don't know how to resolve it.
I have to transform one type of xml file to the other type of xml file.
In my input file I have the following declaration:
xmlns:xsi="

http://www.w3.org/2001/XMLSchema-instance"

xsi:noNamespaceSchemaLocation="abc.xsd">
In the stylesheet I am changing the document declaration using the following: <xslutput method = &quot;xml&quot; doctype-system = &quot;

http://abc.org/xsltReference&quot;

/>

As a result, in the resulting xml file each element has the attribute xmlns:xsi=&quot;

http://www.w3.org/2001/XMLSchema-instance&quot;.

I don't need it! What is the problem, and how to get read of those attributes?
Thank you very much!