FIX: redefinition causes crash of xsl

src/core/xsl/query.xsl

@@ -23,8 +23,6 @@
 -->
 <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
   <xsl:output method="html"/>
-  <xsl:param name="lowercase" select="'abcdefghijklmnopqrstuvwxyz'"/>
-  <xsl:param name="uppercase" select="'ABCDEFGHIJKLMNOPQRSTUVWXYZ'"/>
   <xsl:template match="ParseTree" mode="query-results">
     <xsl:apply-templates select="ParsingError"/>
   </xsl:template>
@@ -314,7 +312,6 @@
     <!-- handle anything but attributes and properties -->
     <xsl:param name="first-segment"/>
     <xsl:param name="next-segments"/>
-
     <xsl:choose>
       <xsl:when test="@*[translate($first-segment, $uppercase, $lowercase)=name()]">
         <!--handle attributes-->