[clang] [clang][Sema][NFC] Remove unused delayed template parsing cleanup callback (PR #164149)

[Victor Chernyakin via cfe-commits]

https://github.com/localspook created https://github.com/llvm/llvm-project/pull/164149

The last use of it was removed in 6163aa9.

>From 43bc40aa82cbe0158fa0d8e0ebb736ac75064076 Mon Sep 17 00:00:00 2001
From: Victor Chernyakin <chernyakin.victor.j at outlook.com>
Date: Sat, 18 Oct 2025 21:18:45 -0700
Subject: [PATCH] [clang][Sema][NFC] Remove unused delayed template parsing
 cleanup callback

---
 clang/include/clang/Sema/Sema.h |  6 +-----
 clang/lib/Parse/Parser.cpp      |  2 +-
 clang/lib/Sema/Sema.cpp         | 10 +++-------
 3 files changed, 5 insertions(+), 13 deletions(-)

diff --git a/clang/include/clang/Sema/Sema.h b/clang/include/clang/Sema/Sema.h
index 37598f8530c09..5881c2a41d594 100644
--- a/clang/include/clang/Sema/Sema.h
+++ b/clang/include/clang/Sema/Sema.h
@@ -1321,15 +1321,11 @@ class Sema final : public SemaBase {
 
   /// Callback to the parser to parse templated functions when needed.
   typedef void LateTemplateParserCB(void *P, LateParsedTemplate &LPT);
-  typedef void LateTemplateParserCleanupCB(void *P);
   LateTemplateParserCB *LateTemplateParser;
-  LateTemplateParserCleanupCB *LateTemplateParserCleanup;
   void *OpaqueParser;
 
-  void SetLateTemplateParser(LateTemplateParserCB *LTP,
-                             LateTemplateParserCleanupCB *LTPCleanup, void *P) {
+  void SetLateTemplateParser(LateTemplateParserCB *LTP, void *P) {
     LateTemplateParser = LTP;
-    LateTemplateParserCleanup = LTPCleanup;
     OpaqueParser = P;
   }
 
diff --git a/clang/lib/Parse/Parser.cpp b/clang/lib/Parse/Parser.cpp
index bbff627d46600..c1393b36825f8 100644
--- a/clang/lib/Parse/Parser.cpp
+++ b/clang/lib/Parse/Parser.cpp
@@ -708,7 +708,7 @@ bool Parser::ParseTopLevelDecl(DeclGroupPtrTy &Result,
     }
 
     // Late template parsing can begin.
-    Actions.SetLateTemplateParser(LateTemplateParserCallback, nullptr, this);
+    Actions.SetLateTemplateParser(LateTemplateParserCallback, this);
     Actions.ActOnEndOfTranslationUnit();
     //else don't tell Sema that we ended parsing: more input might come.
     return true;
diff --git a/clang/lib/Sema/Sema.cpp b/clang/lib/Sema/Sema.cpp
index 39fa25f66f3b7..ea411b59ec1fd 100644
--- a/clang/lib/Sema/Sema.cpp
+++ b/clang/lib/Sema/Sema.cpp
@@ -276,10 +276,9 @@ Sema::Sema(Preprocessor &pp, ASTContext &ctxt, ASTConsumer &consumer,
       Context(ctxt), Consumer(consumer), Diags(PP.getDiagnostics()),
       SourceMgr(PP.getSourceManager()), APINotes(SourceMgr, LangOpts),
       AnalysisWarnings(*this), ThreadSafetyDeclCache(nullptr),
-      LateTemplateParser(nullptr), LateTemplateParserCleanup(nullptr),
-      OpaqueParser(nullptr), CurContext(nullptr), ExternalSource(nullptr),
-      StackHandler(Diags), CurScope(nullptr), Ident_super(nullptr),
-      AMDGPUPtr(std::make_unique<SemaAMDGPU>(*this)),
+      LateTemplateParser(nullptr), OpaqueParser(nullptr), CurContext(nullptr),
+      ExternalSource(nullptr), StackHandler(Diags), CurScope(nullptr),
+      Ident_super(nullptr), AMDGPUPtr(std::make_unique<SemaAMDGPU>(*this)),
       ARMPtr(std::make_unique<SemaARM>(*this)),
       AVRPtr(std::make_unique<SemaAVR>(*this)),
       BPFPtr(std::make_unique<SemaBPF>(*this)),
@@ -1248,9 +1247,6 @@ void Sema::ActOnEndOfTranslationUnit() {
             ? TUFragmentKind::Private
             : TUFragmentKind::Normal);
 
-    if (LateTemplateParserCleanup)
-      LateTemplateParserCleanup(OpaqueParser);
-
     CheckDelayedMemberExceptionSpecs();
   } else {
     // If we are building a TU prefix for serialization, it is safe to transfer