revert --> add appEnvironmentVariables to jenkinsfile

Jenkinsfile

@@ -11,10 +11,4 @@ List<String> extraRecipients = ['erik.reid@geant.org']
 // python versions (docker tags) to test against, must be explicit versions
 List<String> pythonTestVersions = ['3.11']
 
-// Environment variables you want to pass
-Map<String, String> appEnvironmentVariables = [
-    'USE_ISOLATED_DOCKER_COMPOSE': '1',
-    // add more as needed
-]
-
-SimplePythonBuild(name, extraRecipients, pythonTestVersions, appEnvironmentVariables)
+SimplePythonBuild(name, extraRecipients, pythonTestVersions)