diff --git a/clang/lib/AST/RecordLayoutBuilder.cpp b/clang/lib/AST/RecordLayoutBuilder.cpp
index d01c4a0523fe..88d71ce04287 100644
--- a/clang/lib/AST/RecordLayoutBuilder.cpp
+++ b/clang/lib/AST/RecordLayoutBuilder.cpp
@@ -660,9 +660,8 @@ class RecordLayoutBuilder {
 
   void UpdateAlignment(unsigned NewAlignment);
 
-  // DO NOT IMPLEMENT
-  RecordLayoutBuilder(const RecordLayoutBuilder&) ATTRIBUTE_UNUSED;
-  void operator=(const RecordLayoutBuilder&) ATTRIBUTE_UNUSED;
+  RecordLayoutBuilder(const RecordLayoutBuilder&);   // DO NOT IMPLEMENT
+  void operator=(const RecordLayoutBuilder&); // DO NOT IMPLEMENT
 public:
   static const CXXMethodDecl *ComputeKeyFunction(const CXXRecordDecl *RD);
 };
diff --git a/clang/lib/Frontend/VerifyDiagnosticsClient.cpp b/clang/lib/Frontend/VerifyDiagnosticsClient.cpp
index f2a260631711..ae36481444da 100644
--- a/clang/lib/Frontend/VerifyDiagnosticsClient.cpp
+++ b/clang/lib/Frontend/VerifyDiagnosticsClient.cpp
@@ -18,7 +18,6 @@
 #include "llvm/ADT/SmallString.h"
 #include "llvm/Support/Regex.h"
 #include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/Compiler.h"
 using namespace clang;
 
 VerifyDiagnosticsClient::VerifyDiagnosticsClient(Diagnostic &_Diags,
@@ -101,8 +100,8 @@ protected:
     : Location(Location), Text(Text), Count(Count) { }
 
 private:
-  Directive(const Directive&) ATTRIBUTE_UNUSED; // DO NOT IMPLEMENT
-  void operator=(const Directive&) ATTRIBUTE_UNUSED; // DO NOT IMPLEMENT
+  Directive(const Directive&); // DO NOT IMPLEMENT
+  void operator=(const Directive&); // DO NOT IMPLEMENT
 };
 
 /// StandardDirective - Directive with string matching.