Refactoring: C++11 style DISABLE_ bionic marcos

Enable the -std=gnu++11 flag for libstdc++ static and
  dynamic libs.

  ScopeGuard uses DISABLE_ macros instead of '= delete';

(cherry picked from commit d9ff722661)

Change-Id: If2573d080770e18b36b56106f2369f7bb682cd3c

libc/private/bionic_macros.h

@@ -20,8 +20,8 @@
 // DISALLOW_COPY_AND_ASSIGN disallows the copy and operator= functions.
 // It goes in the private: declarations in a class.
 #define DISALLOW_COPY_AND_ASSIGN(TypeName) \
-  TypeName(const TypeName&);               \
-  void operator=(const TypeName&)
+  TypeName(const TypeName&) = delete;      \
+  void operator=(const TypeName&) = delete
 
 // A macro to disallow all the implicit constructors, namely the
 // default constructor, copy constructor and operator= functions.
@@ -30,7 +30,7 @@
 // that wants to prevent anyone from instantiating it. This is
 // especially useful for classes containing only static methods.
 #define DISALLOW_IMPLICIT_CONSTRUCTORS(TypeName) \
-  TypeName();                                    \
+  TypeName() = delete;                           \
   DISALLOW_COPY_AND_ASSIGN(TypeName)
 
 #define BIONIC_ALIGN(value, alignment) \