Remove interfaces/pointerevents-extension.idl (#20248)

Source: https://github.com/tidoust/reffy-reports/blob/34de77a/ed/idl/pointerevents-extension.idl
Build: https://travis-ci.org/tidoust/reffy-reports/builds/611777172
diff --git a/interfaces/pointerevents-extension.idl b/interfaces/pointerevents-extension.idl
deleted file mode 100644
index 1eb486d..0000000
--- a/interfaces/pointerevents-extension.idl
+++ /dev/null
@@ -1,14 +0,0 @@
-// GENERATED CONTENT - DO NOT EDIT
-// Content was automatically extracted by Reffy into reffy-reports
-// (https://github.com/tidoust/reffy-reports)
-// Source: PointerEvents - Level 2 - Extensions (https://w3c.github.io/pointerevents/extension.html)
-
-partial dictionary PointerEventInit {
-    sequence<PointerEvent> coalescedEvents = [];
-    sequence<PointerEvent> predictedEvents = [];
-};
-
-partial interface PointerEvent {
-    sequence<PointerEvent> getCoalescedEvents();
-    sequence<PointerEvent> getPredictedEvents();
-};