don't create directories not used with OpenBSD

src/etc/mtree/BSD.local.dist

@@ -1,4 +1,4 @@
-#     $OpenBSD: BSD.local.dist,v 1.2 1997/09/25 00:32:08 deraadt Exp $
+#     $OpenBSD: BSD.local.dist,v 1.3 1998/06/10 17:21:25 marc Exp $
 #     $FreeBSD: BSD.local.dist,v 1.32 1997/09/12 05:44:11 asami Exp $
 #
 
@@ -6,10 +6,6 @@
 .
     bin
     ..
-    etc
-        rc.d
-	..
-    ..
     include
     ..
     info

src/etc/mtree/BSD.x11.dist

@@ -1,4 +1,4 @@
-#     $OpenBSD: BSD.x11.dist,v 1.2 1997/09/25 00:32:10 deraadt Exp $
+#     $OpenBSD: BSD.x11.dist,v 1.3 1998/06/10 17:21:26 marc Exp $
 #     $FreeBSD: BSD.x11.dist,v 1.2 1997/06/10 07:55:10 asami Exp $
 #
 
@@ -6,10 +6,6 @@
 .
     bin
     ..
-    etc
-        rc.d
-        ..
-    ..
     include
         X11
             ICE