- Patch #252365 by boombatower: clean up the temporary directory that gets creating during the test runs.

modules/simpletest/drupal_web_test_case.php

@@ -385,7 +385,7 @@ class DrupalWebTestCase extends UnitTestCase {
     global $db_prefix;
     if (preg_match('/simpletest\d+/', $db_prefix)) {
       // Delete temporary files directory and reset files directory path.
-//      simpletest_clean_temporary_directory(file_directory_path());
+      simpletest_clean_temporary_directory(file_directory_path());
       variable_set('file_directory_path', $this->original_file_directory);
 
       $schema = drupal_get_schema(NULL, TRUE);