diff --git a/core/core.services.yml b/core/core.services.yml
index 6134359..5d1eee8 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -505,10 +505,6 @@ services:
     tags:
       - { name: event_subscriber }
     arguments: ['@module_handler']
-  config_global_override_subscriber:
-    class: Drupal\Core\EventSubscriber\ConfigGlobalOverrideSubscriber
-    tags:
-      - { name: event_subscriber }
   config_import_subscriber:
     class: Drupal\Core\EventSubscriber\ConfigImportSubscriber
     tags:
diff --git a/core/modules/config/lib/Drupal/config/Tests/ConfigModuleOverridesTest.php b/core/modules/config/lib/Drupal/config/Tests/ConfigModuleOverridesTest.php
index 0d45693..bc99b92 100644
--- a/core/modules/config/lib/Drupal/config/Tests/ConfigModuleOverridesTest.php
+++ b/core/modules/config/lib/Drupal/config/Tests/ConfigModuleOverridesTest.php
@@ -38,11 +38,15 @@ public function testSimpleModuleOverrides() {
       ->set('slogan', $non_overridden_slogan)
       ->save();
 
+    $this->assertTrue($config_factory->hasOverrides(), 'By default ConfigFactory has overrides enabled.');
+
     $config_factory->disableOverrides();
+    $this->assertFalse($config_factory->hasOverrides(), 'ConfigFactory can disable overrides.');
     $this->assertEqual($non_overridden_name, $config_factory->get('system.site')->get('name'));
     $this->assertEqual($non_overridden_slogan, $config_factory->get('system.site')->get('slogan'));
 
     $config_factory->enableOverrides();
+    $this->assertTrue($config_factory->hasOverrides(), 'ConfigFactory can enable overrides.');
     $this->assertEqual($overridden_name, $config_factory->get('system.site')->get('name'));
     $this->assertEqual($overridden_slogan, $config_factory->get('system.site')->get('slogan'));