patch 8.2.1422: the Mac GUI implementation is outdated
Problem: The Mac GUI implementation is outdated and probably doesn't even
work.
Solution: Remove the Mac GUI code. The MacVim project provides the
supported Vim GUI version.
diff --git a/src/os_mac_conv.c b/src/os_mac_conv.c
index 6c52e7d..3daf74a 100644
--- a/src/os_mac_conv.c
+++ b/src/os_mac_conv.c
@@ -17,7 +17,7 @@
#include "vim.h"
-#if !defined(FEAT_GUI_MAC) && !defined(PROTO)
+#if !defined(PROTO)
# include <CoreServices/CoreServices.h>
#endif