Remove an unused and unimplemented function prototype.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149789 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Sema/Sema.h b/include/clang/Sema/Sema.h
index 99b1ed1..a9b6827 100644
--- a/include/clang/Sema/Sema.h
+++ b/include/clang/Sema/Sema.h
@@ -1457,11 +1457,6 @@
   typedef llvm::SmallPtrSet<DeclContext   *, 16> AssociatedNamespaceSet;
   typedef llvm::SmallPtrSet<CXXRecordDecl *, 16> AssociatedClassSet;
 
-  void AddOverloadCandidate(NamedDecl *Function,
-                            DeclAccessPair FoundDecl,
-                            Expr **Args, unsigned NumArgs,
-                            OverloadCandidateSet &CandidateSet);
-
   void AddOverloadCandidate(FunctionDecl *Function,
                             DeclAccessPair FoundDecl,
                             Expr **Args, unsigned NumArgs,