diff --git a/core/lib/Drupal/Core/EventSubscriber/RequestCloseSubscriber.php b/core/lib/Drupal/Core/EventSubscriber/RequestCloseSubscriber.php
index 9b3ef45..cb5ed74 100644
--- a/core/lib/Drupal/Core/EventSubscriber/RequestCloseSubscriber.php
+++ b/core/lib/Drupal/Core/EventSubscriber/RequestCloseSubscriber.php
@@ -39,9 +39,6 @@ class RequestCloseSubscriber implements EventSubscriberInterface {
     if ($config->get('cache') && ($cache = drupal_page_set_cache())) {
       drupal_serve_page_from_cache($cache);
     }
-    else {
-      ob_flush();
-    }
 
     _registry_check_code(REGISTRY_WRITE_LOOKUP_CACHE);
     drupal_cache_system_paths();