diff --git a/dom/abort/addEventListenerAbortController.tentative.html b/dom/abort/addEventListenerAbortController.tentative.html
deleted file mode 100644
index d208d4b0d6c576..00000000000000
--- a/dom/abort/addEventListenerAbortController.tentative.html
+++ /dev/null
@@ -1,56 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<link rel="author" title="Joey Arhar" href="mailto:jarhar@chromium.org">
-
-<!-- This behavior has not been specified yet. See https://github.com/whatwg/dom/issues/911 -->
-
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-
-<body>
-
-<script>
-test(t => {
-  const target = new EventTarget();
-  const controller = new AbortController();
-
-  target.addEventListener('testevent', t.step_func(() => {
-    assert_unreached('testevent should have been canceled by AbortController');
-  }), {signal: controller.signal});
-
-  controller.abort();
-  target.dispatchEvent(new Event('testevent'));
-}, 'Tests support for EventController to cancel event listeners in addEventListener.');
-
-test(t => {
-  const target = new EventTarget();
-  const controller = new AbortController();
-
-  target.addEventListener('testevent', t.step_func(() => {
-    assert_unreached('testevent should have been canceled by AbortController');
-  }), {signal: controller.signal, capture: true});
-
-  controller.abort();
-  target.dispatchEvent(new Event('testevent'));
-}, 'Tests support for EventController to cancel capture event listeners in addEventListener.');
-
-test(function() {
-  let count = 0;
-  function handler() {
-    count++;
-  }
-  const et = new EventTarget();
-  const controller = new AbortController();
-  et.addEventListener('test', handler, { signal: controller.signal });
-  et.dispatchEvent(new Event('test'));
-  assert_equals(count, 1, "Adding a signal still adds a listener");
-  et.dispatchEvent(new Event('test'));
-  assert_equals(count, 2, "The listener was not added with the once flag");
-  controller.abort();
-  et.dispatchEvent(new Event('test'));
-  assert_equals(count, 2, "Aborting on the controller removes the listener");
-  et.addEventListener('test', handler, { signal: controller.signal });
-  et.dispatchEvent(new Event('test'));
-  assert_equals(count, 2, "Passing an aborted signal never adds the handler");
-}, "Passing an AbortSignal to addEventListener options should allow removing a listener");
-</script>
