remove duplicate DefaultLan and CurrentLang

src/main/resources/xslt/biocol2mods.xsl

@@ -5,9 +5,6 @@
   xmlns:mods="http://www.loc.gov/mods/v3"
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 
-  <xsl:param name="CurrentLang" />
-  <xsl:param name="DefaultLang" />
-
   <!-- for compatibility with dfg-viewer -->
   <xsl:template match="mycoreobject[contains(@ID, '_biocol_')]" mode="mets_metsmeta" priority="1">
     <xsl:apply-templates mode="mods" select="." />