remove obsolete code

src/main/resources/xslt/biocol2mods.xsl

@@ -291,23 +291,6 @@
           <xsl:with-param name="metadataNode" select="$xml/metadata" />
           <xsl:with-param name="lang" select="'en'" />
         </xsl:call-template>
-        
-        
-        
-        <xsl:if
-          test="$xml/metadata/def.biocol20/biocol20 or $xml/metadata/def.biocol21/biocol21 or $xml/metadata/def.biocol22/biocol22
-                 or $xml/metadata/def.biocol23/biocol23 or $xml/metadata/def.biocol24/biocol24 or $xml/metadata/def.biocol25/biocol25
-                 or $xml/metadata/def.biocol26/biocol26 or $xml/metadata/def.biocol27/biocol27 or $xml/metadata/def.biocol28/biocol28
-                 or $xml/metadata/def.biocol29/biocol29">
-                 
-          <mods:topic>
-            <xsl:value-of
-              select="concat($xml/metadata/def.biocol20/biocol20, ' | ', $xml/metadata/def.biocol21/biocol21, ' | ', $xml/metadata/def.biocol22/biocol22,
-                 ' | ', $xml/metadata/def.biocol23/biocol23, ' | ', $xml/metadata/def.biocol24/biocol24, ' | ', $xml/metadata/def.biocol25/biocol25,
-                 ' | ', $xml/metadata/def.biocol26/biocol26, ' | ', $xml/metadata/def.biocol27/biocol27, ' | ', $xml/metadata/def.biocol28/biocol28,
-                 ' | ', $xml/metadata/def.biocol29/biocol29)" />
-          </mods:topic>
-        </xsl:if>
 
         <!--  mods:subject/hierarchicalGeographic - places -->
         <xsl:if