[MS][clang] Revert vector deleting destructors support (#135611)

Finding operator delete[] is still problematic, without it the extension
is a security hazard, so reverting until the problem with operator
delete[] is figured out.

This reverts the following PRs:
Reland [MS][clang] Add support for vector deleting destructors (llvm#133451)
[MS][clang] Make sure vector deleting dtor calls correct operator delete (llvm#133950)
[MS][clang] Fix crash on deletion of array of pointers (llvm#134088)
[clang] Do not diagnose unused deleted operator delete[] (llvm#134357)
[MS][clang] Error about ambiguous operator delete[] only when required (llvm#135041)

1 files changed, 0 insertions, 6 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 2cf15e2..46de3d86 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -528,9 +528,6 @@ private:
   /// that we don't re-emit the initializer.
   llvm::DenseMap<const Decl*, unsigned> DelayedCXXInitPosition;
 
-  /// To remember which types did require a vector deleting dtor.
-  llvm::SmallPtrSet<const CXXRecordDecl *, 16> RequireVectorDeletingDtor;
-
   typedef std::pair<OrderGlobalInitsOrStermFinalizers, llvm::Function *>
       GlobalInitData;
 
@@ -1545,7 +1542,6 @@ public:
   void EmitGlobal(GlobalDecl D);
 
   bool TryEmitBaseDestructorAsAlias(const CXXDestructorDecl *D);
-  void EmitDefinitionAsAlias(GlobalDecl Alias, GlobalDecl Target);
 
   llvm::GlobalValue *GetGlobalValue(StringRef Ref);
 
@@ -1813,8 +1809,6 @@ public:
     // behavior. So projects like the Linux kernel can rely on it.
     return !getLangOpts().CPlusPlus;
   }
-  void requireVectorDestructorDefinition(const CXXRecordDecl *RD);
-  bool classNeedsVectorDestructor(const CXXRecordDecl *RD);
 
 private:
   bool shouldDropDLLAttribute(const Decl *D, const llvm::GlobalValue *GV) const;