If MS_WIN64 is defined, MS_WINDOWS is also defined: #ifdef can be simplified.
diff --git a/Python/fileutils.c b/Python/fileutils.c
index 293cb77..e759856 100644
--- a/Python/fileutils.c
+++ b/Python/fileutils.c
@@ -16,13 +16,13 @@
PyObject *
_Py_device_encoding(int fd)
{
-#if defined(MS_WINDOWS) || defined(MS_WIN64)
+#if defined(MS_WINDOWS)
UINT cp;
#endif
if (!_PyVerify_fd(fd) || !isatty(fd)) {
Py_RETURN_NONE;
}
-#if defined(MS_WINDOWS) || defined(MS_WIN64)
+#if defined(MS_WINDOWS)
if (fd == 0)
cp = GetConsoleCP();
else if (fd == 1 || fd == 2)