Commit 1effac67c9e5ef520addd4c9a79e895132eea41c

Don't mention __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS

Draft (n2914) say:

  The header defines all functions, types, and macros the same
  as C99 7.18. [Note: The macros defined by <cstdint> are provided
  unconditionally. In particular, the symbols __STDC_LIMIT_MACROS
  and __STDC_CONSTANT_MACROS (mentioned in C99 footnotes 219, 220,
  and 222) play no role in C++. -- end note]
  
1616# define _STLP_DONT_POP_HEADER_ID
1717#endif
1818
19/* For 8.22.1/1 (see C99, Notes 219, 220, 222) */
20#ifndef __STDC_LIMIT_MACROS
21# define __STDC_LIMIT_MACROS
22#endif
23
24#ifndef __STDC_CONSTANT_MACROS
25# define __STDC_CONSTANT_MACROS
26#endif
27
2819#ifdef _MSC_VER
2920# include "stl/msc_stdint.h"
3021#else /* _MSC_VER */