Koha/koha-tmpl/intranet-tmpl/prog/en/xslt/Del9LinksExcept952.xsl

<xsl:stylesheet
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:marc="http://www.loc.gov/MARC21/slim"
  version="1.0">

  <xsl:output method="xml" indent="yes" encoding="UTF-8"/>
  <xsl:strip-space elements="*"/>

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

  <xsl:template match="marc:datafield[@tag!=952]/marc:subfield[@code=9]"/>
</xsl:stylesheet>