diff --git a/core/modules/simpletest/lib/Drupal/simpletest/Form/SimpletestTestForm.php b/core/modules/simpletest/lib/Drupal/simpletest/Form/SimpletestTestForm.php
index f6dd55c..80cf1de 100644
--- a/core/modules/simpletest/lib/Drupal/simpletest/Form/SimpletestTestForm.php
+++ b/core/modules/simpletest/lib/Drupal/simpletest/Form/SimpletestTestForm.php
@@ -81,12 +81,7 @@ public function buildForm(array $form, array &$form_state) {
       // non-word/decimal characters with a dash (-).
       $test_class = strtolower(trim(preg_replace("/[^\w\d]/", "-", $group)));
 
-      // Select the right "expand"/"collapse" image, depending on whether the
-      // category is expanded (at least one test selected) or not.
-      $collapsed = TRUE; //!empty($element['#collapsed']);
-      $image_index = 0; //$collapsed ? 0 : 1;
-
-      //   // Place-holder for checkboxes to select group of tests.
+      // Place-holder for checkboxes to select group of tests.
       $form['tests']['table'][$group]['checkbox'] = array(
         '#wrapper_attributes' => array(
           'id' => $test_class,
@@ -114,7 +109,8 @@ public function buildForm(array $form, array &$form_state) {
       $current_js = array(
         'testClass' => $test_class . '-test',
         'testNames' => array(),
-        'imageDirection' => $image_index,
+        // imageDirection maps to the 'images' index in the $js array.
+        'imageDirection' => 0,
         'clickActive' => FALSE,
       );
 
@@ -126,11 +122,8 @@ public function buildForm(array $form, array &$form_state) {
         $test_class_id = 'edit-' . drupal_html_id($class);
         $current_js['testNames'][] = $test_class_id;
 
-        // Test name is used to determine what tests to run.
-        // $test['#name'] = $class;
-
         $form['tests']['table'][$test_class_id] = array(
-          '#attributes' => array('class' => array($test_class . '-test', ($collapsed ? 'js-hide' : ''))),
+          '#attributes' => array('class' => array($test_class . '-test', 'js-hide')),
         );
 
         $form['tests']['table'][$test_class_id]['checkbox'] = array(
@@ -166,7 +159,7 @@ public function buildForm(array $form, array &$form_state) {
       $js['simpletest-test-group-' . $test_class] = $current_js;
     }
 
-    // Add js array of settings.
+    // Add JavaScript array of settings.
     drupal_add_js(array('simpleTest' => $js), 'setting');
 
     // Action buttons.