diff --git a/core/modules/image/image.test b/core/modules/image/image.test
index 21eaca4a390..f2c9d2f0f5b 100644
--- a/core/modules/image/image.test
+++ b/core/modules/image/image.test
@@ -506,66 +506,6 @@ class ImageAdminStylesUnitTest extends ImageFieldTestCase {
 
   }
 
-  /**
-   * Test to override, edit, then revert a style.
-   */
-  function testDefaultStyle() {
-    // Setup a style to be created and effects to add to it.
-    $style_name = 'thumbnail';
-    $edit_path = 'admin/config/media/image-styles/edit/' . $style_name;
-    $delete_path = 'admin/config/media/image-styles/delete/' . $style_name;
-    $revert_path = 'admin/config/media/image-styles/revert/' . $style_name;
-
-    // Create an image to make sure the default works before overriding.
-    drupal_static_reset('image_styles');
-    $style = image_style_load($style_name);
-    $image_path = $this->createSampleImage($style);
-    $this->assertEqual($this->getImageCount($style), 1, t('Image style %style image %file successfully generated.', array('%style' => $style['name'], '%file' => $image_path)));
-
-    // Verify that effects attached to a default style do not have an ieid key.
-    foreach ($style['effects'] as $effect) {
-      $this->assertFalse(isset($effect['ieid']), t('The %effect effect does not have an ieid.', array('%effect' => $effect['name'])));
-    }
-
-    // Override the default.
-    $this->drupalPost($edit_path, array(), t('Override defaults'));
-    $this->assertRaw(t('The %style style has been overridden, allowing you to change its settings.', array('%style' => $style_name)), t('Default image style may be overridden.'));
-
-    // Add sample effect to the overridden style.
-    $this->drupalPost($edit_path, array('new' => 'image_desaturate'), t('Add'));
-    drupal_static_reset('image_styles');
-    $style = image_style_load($style_name);
-
-    // Verify that effects attached to the style have an ieid now.
-    foreach ($style['effects'] as $effect) {
-      $this->assertTrue(isset($effect['ieid']), t('The %effect effect has an ieid.', array('%effect' => $effect['name'])));
-    }
-
-    // The style should now have 2 effect, the original scale provided by core
-    // and the desaturate effect we added in the override.
-    $effects = array_values($style['effects']);
-    $this->assertEqual($effects[0]['name'], 'image_scale', t('The default effect still exists in the overridden style.'));
-    $this->assertEqual($effects[1]['name'], 'image_desaturate', t('The added effect exists in the overridden style.'));
-
-    // Check that we are unable to rename an overridden style.
-    $this->drupalGet($edit_path);
-    $this->assertNoField('edit-name', t('Overridden styles may not be renamed.'));
-
-    // Create an image to ensure the override works properly.
-    $image_path = $this->createSampleImage($style);
-    $this->assertEqual($this->getImageCount($style), 1, t('Image style %style image %file successfully generated.', array('%style' => $style['name'], '%file' => $image_path)));
-
-    // Revert the image style.
-    $this->drupalPost($revert_path, array(), t('Revert'));
-    drupal_static_reset('image_styles');
-    $style = image_style_load($style_name);
-
-    // The style should now have the single effect for scale.
-    $effects = array_values($style['effects']);
-    $this->assertEqual($effects[0]['name'], 'image_scale', t('The default effect still exists in the reverted style.'));
-    $this->assertFalse(array_key_exists(1, $effects), t('The added effect has been removed in the reverted style.'));
-  }
-
   /**
    * Test deleting a style and choosing a replacement style.
    */