remove xml tags with XSLT

Question

I have the following xml file:

  
    
    
     ... 

        

Answer 1

Identity transformation plus <xsl:template match="commercialType" priority="10"/>.

Answer 2

This transformation produces the desired results:

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>

 <xsl:template match="node()|@*">
  <xsl:copy>
   <xsl:apply-templates select="node()|@*"/>
  </xsl:copy>
 </xsl:template>

 <xsl:template match="commercialType|userList|officesList"/>
</xsl:stylesheet>