Unset CLOUSEAU_JAVA_HOME because we need Java 21

Author: pgj

build-aux/Jenkinsfile

@@ -317,12 +317,14 @@ def generateNativeStage(platform) {
                   powershell( script: """
                     .\\..\\..\\couchdb-glazier\\bin\\shell.ps1
                     Set-Item -Path env:GRADLE_OPTS -Value '-Dorg.gradle.daemon=false'
+                    Remove-Item env:CLOUSEAU_JAVA_HOME
                     make -f Makefile.win elixir-search ERLANG_COOKIE=crumbles
                   """, label: 'Clouseau tests')
 
                   powershell( script: """
                       .\\..\\..\\couchdb-glazier\\bin\\shell.ps1
                       Set-Item -Path env:GRADLE_OPTS -Value '-Dorg.gradle.daemon=false'
+                      Remove-Item env:CLOSUEAU_JAVA_HOME
                       make -f Makefile.win mango-test ERLANG_COOKIE=crumbles
                     """, label: 'Mango tests')