Revert "[clang][CodeGen] Emit annotations for function declarations."

This reverts commit c6a33ff49dfb3498dae15c718820ea3d9c19f3cb. Makes
clang segfault.

// clang t.cc
class a;
class c {
 public:
  [[clang::annotate("")]] c(const c *) {}
};
class d {
  d(const c *, a *, a *);
  c e;
};
d::d(const c *f, a *, a *) : e(f) {}

1 files changed, 0 insertions, 4 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 8b0d68a..073b471 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -431,10 +431,6 @@ private:
   /// Global annotations.
   std::vector<llvm::Constant*> Annotations;
 
-  // Store deferred function annotations so they can be emitted at the end with
-  // most up to date ValueDecl that will have all the inherited annotations.
-  llvm::DenseMap<StringRef, const ValueDecl *> DeferredAnnotations;
-
   /// Map used to get unique annotation strings.
   llvm::StringMap<llvm::Constant*> AnnotationStrings;