deleted file mode 100644
--- a/testing/web-platform/meta/web-animations/interfaces/AnimationTimeline/idlharness.html.ini
+++ /dev/null
@@ -1,7 +0,0 @@
-[idlharness.html]
-  type: testharness
-  prefs: [dom.animations-api.core.enabled:true]
-  [DocumentTimeline interface object length]
-    expected: FAIL
-    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1267510
-

deleted file mode 100644
--- a/testing/web-platform/meta/web-animations/interfaces/DocumentTimeline/constructor.html.ini
+++ /dev/null
@@ -1,13 +0,0 @@
-[constructor.html]
-  type: testharness
-  [zero origin time]
-    expected: FAIL
-    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1267510
-
-  [positive origin time]
-    expected: FAIL
-    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1267510
-
-  [negative origin time]
-    expected: FAIL
-    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1267510