[Basic] Eliminate DiagnosticBuilder::Suppress and matching ctor, this stuff is

not used anymore (good thing we are still paying for it!).

llvm-svn: 152642

clang/include/clang/Basic/Diagnostic.h

@@ -793,15 +793,6 @@ public:
     NumFixits = D.NumFixits;
   }
 
-  /// \brief Simple enumeration value used to give a name to the
-  /// suppress-diagnostic constructor.
-  enum SuppressKind { Suppress };
-
-  /// \brief Create an empty DiagnosticBuilder object that represents
-  /// no actual diagnostic.
-  explicit DiagnosticBuilder(SuppressKind)
-    : DiagObj(0), NumArgs(0), NumRanges(0), NumFixits(0) { }
-
   /// \brief Force the diagnostic builder to emit the diagnostic now.
   ///
   /// Once this function has been called, the DiagnosticBuilder object

clang/include/clang/Sema/Sema.h

@@ -776,9 +776,6 @@ public:
     SemaDiagnosticBuilder(DiagnosticBuilder &DB, Sema &SemaRef, unsigned DiagID)
       : DiagnosticBuilder(DB), SemaRef(SemaRef), DiagID(DiagID) { }
 
-    explicit SemaDiagnosticBuilder(Sema &SemaRef)
-      : DiagnosticBuilder(DiagnosticBuilder::Suppress), SemaRef(SemaRef) { }
-
     ~SemaDiagnosticBuilder();
   };