From 49f80b3dc6ee13a42ead019ed7727d3e6a6119f3 Mon Sep 17 00:00:00 2001
From: mu001999 <mu001999@outlook.com>
Date: Tue, 2 Jun 2026 23:26:03 +0800
Subject: [PATCH] Remove unnecessary arm

---
 compiler/rustc_passes/src/dead.rs | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs
index 92a0f14f3e94e..b79460afad99e 100644
--- a/compiler/rustc_passes/src/dead.rs
+++ b/compiler/rustc_passes/src/dead.rs
@@ -184,15 +184,6 @@ impl<'tcx> MarkSymbolVisitor<'tcx> {
 
     fn handle_res(&mut self, res: Res) {
         match res {
-            Res::Def(
-                DefKind::Const { .. }
-                | DefKind::AssocConst { .. }
-                | DefKind::AssocTy
-                | DefKind::TyAlias,
-                def_id,
-            ) => {
-                self.check_def_id(def_id);
-            }
             Res::PrimTy(..) | Res::SelfCtor(..) | Res::Local(..) => {}
             Res::Def(DefKind::Ctor(CtorOf::Variant, ..), ctor_def_id) => {
                 // Using a variant in patterns should not make the variant live,