Issue #23451: Update pyconfig.h for Windows to require Vista headers and remove unnecessary version checks.

Python/sysmodule.c

@@ -772,6 +772,12 @@ static PyStructSequence_Desc windows_version_desc = {
                                  via indexing, the rest are name only */
 };
 
+/* Disable deprecation warnings about GetVersionEx as the result is
+   being passed straight through to the caller, who is responsible for
+   using it correctly. */
+#pragma warning(push)
+#pragma warning(disable:4996)
+
 static PyObject *
 sys_getwindowsversion(PyObject *self)
 {
@@ -803,6 +809,8 @@ sys_getwindowsversion(PyObject *self)
     return version;
 }
 
+#pragma warning(pop)
+
 #endif /* MS_WINDOWS */
 
 #ifdef HAVE_DLOPEN