diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxThemeTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxThemeTest.php
index 565fbb7..c536fe8 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxThemeTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxThemeTest.php
@@ -37,8 +37,6 @@ public function testAjaxWithAdminRoute() {
     $assert->pageTextNotContains('Current theme: stable');
     $this->clickLink('Link 8 (ajax)');
     $this->waitForAjaxToFinish();
-    file_put_contents('/tmp/foo.png', $this->getSession()->getScreenshot());
-    file_put_contents('/tmp/foo.html', $this->getSession()->getPage()->getHtml());
 
     $assert->pageTextContains('Current theme: stable');
     $assert->pageTextNotContains('Current theme: seven');