From c745c6fb4e8ff74934821594b27813aeefc90449 Mon Sep 17 00:00:00 2001
From: irontaek <13810291+irontaek@users.noreply.github.com>
Date: Wed, 7 Oct 2026 21:48:31 +0900
Subject: [PATCH] Remove the unused `newAncestors` set in
 `XFAObject[_applyPrototype]`

Its two consumers switched to `ancestors` in 11573ddd1 (XFA - Implement usehref support), so the set has been built and never read since.
---
 src/core/xfa/xfa_object.js | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/core/xfa/xfa_object.js b/src/core/xfa/xfa_object.js
index e2ae8d6104dd4..41bc022ce7fde 100644
--- a/src/core/xfa/xfa_object.js
+++ b/src/core/xfa/xfa_object.js
@@ -560,9 +560,6 @@ class XFAObject {
       this[$content] = proto[$content];
     }
 
-    const newAncestors = new Set(ancestors);
-    newAncestors.add(proto);
-
     for (const unsetAttrName of this[_getUnsetAttributes](
       proto[_setAttributes]
     )) {