FIX xsl crash

Summary

On new browsers, the webinterface did not work. (Blank page) This is fixed by removing a global variable redefinition

Focus

uppercase and lowercase parameters are defined in main.xls and were redefined in query.xsl

Test Environment

piplines and manually look at the result of a select query.

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related issues
• Up-to-date CHANGELOG.md (or not necessary)
• Up-to-date JSON schema (or not necessary)
• Appropriate user and developer documentation (or not necessary)
  • How do I use the software? Assume "stupid" users.
  • How do I develop or debug the software? Assume novice developers.
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
• Appropriate user and developer documentation (or not necessary)
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.

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-->