[glibmm] glib/glibmmconfig.h.[in|meson]: Clean up MSVC bits

[Chun-wei Fan <fanchunwei src gnome org>]

commit 7ae8115ffaeda517063d5e1ca253366400109d32
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Tue Mar 10 15:35:39 2020 +0800

    glib/glibmmconfig.h.[in|meson]: Clean up MSVC bits
    
    From
    https://gitlab.gnome.org/GNOME/glibmm/-/merge_requests/29#note_734668,
    it was noted by Kjell that we will always have thread_local, so there is
    really no GLIBMM_CAN_USE_THREAD_LOCAL in the code, so we can drop that.
    
    Also drop the Visual Studio 2013 compatibility bits, since we need
    Visual Studio 2017 to build glibmm master (C++17 branch), so they won't
    be relevant.

 glib/glibmmconfig.h.in    | 23 -----------------------
 glib/glibmmconfig.h.meson | 23 -----------------------
 2 files changed, 46 deletions(-)
---
diff --git a/glib/glibmmconfig.h.in b/glib/glibmmconfig.h.in
index 7cf76292..b1c2d8db 100644
--- a/glib/glibmmconfig.h.in
+++ b/glib/glibmmconfig.h.in
@@ -82,29 +82,6 @@
 # define GLIBMM_CAN_ASSIGN_NON_EXTERN_C_FUNCTIONS_TO_EXTERN_C_CALLBACKS 1
 # pragma warning (disable: 4786 4355 4800 4181)
 
-#if (_MSC_VER < 1900)
-/* The C++-11 keywords noexcept and thread_local are supported on
- * Visual Studio 2013 via Microsoft-specific extensions, but are
- * supported directly in Visual Studio 2015
- */
-
-#define _ALLOW_KEYWORD_MACROS 1
-
-#ifndef noexcept
-#define noexcept _NOEXCEPT
-#endif
-
-#ifndef thread_local
-#define thread_local __declspec (thread)
-#endif
-
-#else
-
-/* thread_local is supported on Visual Studio 2015+ */
-#define GLIBMM_CAN_USE_THREAD_LOCAL 1
-
-#endif /* _MSC_VER < 1900 */
-
 /* We have GLIBMM_HAVE_ALLOWS_STATIC_INLINE_NPOS for Visual Studio 2017+ */
 #if (_MSC_VER >= 1910)
 #define GLIBMM_HAVE_ALLOWS_STATIC_INLINE_NPOS 1
diff --git a/glib/glibmmconfig.h.meson b/glib/glibmmconfig.h.meson
index 55aa3bac..16b96833 100644
--- a/glib/glibmmconfig.h.meson
+++ b/glib/glibmmconfig.h.meson
@@ -84,29 +84,6 @@
 # define GLIBMM_CAN_ASSIGN_NON_EXTERN_C_FUNCTIONS_TO_EXTERN_C_CALLBACKS 1
 # pragma warning (disable: 4786 4355 4800 4181)
 
-#if (_MSC_VER < 1900)
-/* The C++-11 keywords noexcept and thread_local are supported on
- * Visual Studio 2013 via Microsoft-specific extensions, but are
- * supported directly in Visual Studio 2015
- */
-
-#define _ALLOW_KEYWORD_MACROS 1
-
-#ifndef noexcept
-#define noexcept _NOEXCEPT
-#endif
-
-#ifndef thread_local
-#define thread_local __declspec (thread)
-#endif
-
-#else
-
-/* thread_local is supported on Visual Studio 2015+ */
-#define GLIBMM_CAN_USE_THREAD_LOCAL 1
-
-#endif /* _MSC_VER < 1900 */
-
 /* We have GLIBMM_HAVE_ALLOWS_STATIC_INLINE_NPOS for Visual Studio 2017+ */
 #if (_MSC_VER >= 1910)
 #define GLIBMM_HAVE_ALLOWS_STATIC_INLINE_NPOS 1