html output has class attributes

hi, I would like to completely control the class attributes in the generated html output. 
I'm using the DocBook 1.78.1 stylesheets.

Here is an example of what I'm doing. My document (name=listtest.xml):

<chapter xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="prcc">

  <info><title>The Title</title></info>

  <para>

    <itemizedlist>

      <listitem>

        <para>one item</para>

      </listitem>

    </itemizedlist>

  </para>

</chapter>

The command:

xsltproc --stringparam css.decoration 0 /path/xsl-1.78.1/html/docbook.xsl listtest.xml

The output (snippet):

<ul class="itemizedlist" type="disc">

  <li class="listitem"><p>one item</p></li>

</ul>

I don't want any of the class attributes in the output because I will generate my own with a set of templates like this:

<xsl:template match="d:listitem[@remap='stmt']" mode="class.value">

  <xsl:value-of select="'stmt'" />

</xsl:template>

I can't figure out what I'm doing wrong. Is there a way to turn off the class attributes?

thanks,

--Tim Arnold