diff --git a/ed/csspatches/webvtt.json.patch b/ed/csspatches/webvtt.json.patch
deleted file mode 100644
index 462e3626b810..000000000000
--- a/ed/csspatches/webvtt.json.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-From 43ae8a4699f8eba3ab0a096cf260b65b82850c80 Mon Sep 17 00:00:00 2001
-From: Francois Daoust <fd@tidoust.net>
-Date: Sun, 19 Feb 2023 22:11:57 +0100
-Subject: [PATCH] Drop local pseudo-classes dfns from WebVTT
-
-Pending PR: https://github.com/w3c/webvtt/pull/510
----
- ed/css/webvtt.json | 8 --------
- 1 file changed, 8 deletions(-)
-
-diff --git a/ed/css/webvtt.json b/ed/css/webvtt.json
-index c7e6f66bc..c24dfd2af 100644
---- a/ed/css/webvtt.json
-+++ b/ed/css/webvtt.json
-@@ -14,14 +14,6 @@
-       "name": "::cue()",
-       "value": "::cue(selector)"
-     },
--    {
--      "name": ":past",
--      "prose": "The :past pseudo-class only matches WebVTT Node Objects that are in the past."
--    },
--    {
--      "name": ":future",
--      "prose": "The :future pseudo-class only matches WebVTT Node Objects that are in the future."
--    },
-     {
-       "name": "::cue-region",
-       "prose": "The ::cue-region pseudo-element (with no argument) matches any list of WebVTT region objects constructed for the matched element."
--- 
-2.37.1.windows.1
-