remove invalid imported files

- Update to release 12
[synchronization between mingw32-headers/mingw64-headers causes changelog edits]

OBS-URL: https://build.opensuse.org/request/show/1244890
OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/mingw64-headers?expand=0&rev=7

mingw64-headers.changes

@@ -1,11 +1,3 @@
--------------------------------------------------------------------
-Mon May 12 20:26:43 UTC 2025 - Ralf Habacker <ralf.habacker@freenet.de>
-
-- Add support to use a different crt (boo#1243096)
-  By specifying %_mingw64_crt <crt> in the obs project config
-  a different c runtime library can be used for building this
-  package.
-
 -------------------------------------------------------------------
 Mon Oct  7 10:21:51 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
 

mingw64-headers.spec

@@ -54,9 +54,7 @@ an actual pthread implementation (like winpthreads) is installed.
 %autosetup -n mingw-w64-v%version/mingw-w64-headers -p2
 
 %build
-%_mingw64_configure \
-    --enable-sdk=all \
-    --with-default-msvcrt=%{?_mingw64_crt:%{_mingw64_crt}}%{!?_mingw64_crt:msvcrt}
+%_mingw64_configure --enable-sdk=all --with-default-msvcrt=msvcrt
 %make_build
 
 %install