sigc++config.h.*: Drop Visual Studio noexcept workaround

fanc999-1 · kjellahl · commit 9a13d9a01c13 · 2023-07-05T19:12:23.000+02:00
We already need Visual Studio 2017 or later, so this part is not used
at all here.
diff --git a/sigc++config.h.cmake b/sigc++config.h.cmake
@@ -46,11 +46,6 @@
  */
 # pragma warning(disable:4251)
 
-#if (_MSC_VER < 1900) && !defined (noexcept)
-#define _ALLOW_KEYWORD_MACROS 1
-#define noexcept _NOEXCEPT
-#endif
-
 #else /* SIGC_MSC */
 
 #endif /* !SIGC_MSC */
diff --git a/sigc++config.h.in b/sigc++config.h.in
@@ -46,11 +46,6 @@
  */
 #pragma warning(disable : 4251)
 
-#if (_MSC_VER < 1900) && !defined(noexcept)
-#define _ALLOW_KEYWORD_MACROS 1
-#define noexcept _NOEXCEPT
-#endif
-
 #else /* SIGC_MSC */
 
 #endif /* !SIGC_MSC */
diff --git a/sigc++config.h.meson b/sigc++config.h.meson
@@ -49,11 +49,6 @@
  */
 #pragma warning(disable : 4251)
 
-#if (_MSC_VER < 1900) && !defined(noexcept)
-#define _ALLOW_KEYWORD_MACROS 1
-#define noexcept _NOEXCEPT
-#endif
-
 #else /* SIGC_MSC */
 
 #endif /* !SIGC_MSC */
