Remove RISCOS support
diff --git a/Modules/zlib/example.c b/Modules/zlib/example.c
index 6c8a0ee..52bc261 100644
--- a/Modules/zlib/example.c
+++ b/Modules/zlib/example.c
@@ -13,7 +13,7 @@
 #  include <stdlib.h>
 #endif
 
-#if defined(VMS) || defined(RISCOS)
+#if defined(VMS)
 #  define TESTFILE "foo-gz"
 #else
 #  define TESTFILE "foo.gz"