Remove irrelevant devices from the ramdisk target; spotted by deraadt

src/etc/etc.landisk/MAKEDEV.md

@@ -1,6 +1,6 @@
 define(MACHINE,landisk)dnl
 vers(__file__,
-	{-$OpenBSD: MAKEDEV.md,v 1.32 2014/01/05 01:16:52 deraadt Exp $-},
+	{-$OpenBSD: MAKEDEV.md,v 1.33 2014/05/08 17:38:12 miod Exp $-},
 etc.MACHINE)dnl
 dnl
 dnl Copyright (c) 2001-2004 Todd T. Fries <todd@OpenBSD.org>
@@ -96,8 +96,8 @@ dnl
 divert(__mddivert)dnl
 dnl
 ramdisk)
-	_recurse std bpf0 wd0 wd1 sd0 tty00 rd0 wsmouse
-	_recurse st0 ttyC0 wskbd0 apm bio diskmap random
+	_recurse std bpf0 wd0 wd1 sd0 rd0 wsmouse
+	_recurse st0 ttyC0 wskbd0 bio diskmap random
 	;;
 
 _std(1, 2, 8, 6)