review comments

Makefile.util.def

@@ -268,6 +268,7 @@ script = {
   installdir = grubconf;
 };
 
+/*
 script = {
   name = '10_windows';
   source = util/grub.d/10_windows.in;
@@ -279,6 +280,7 @@ script = {
   source = util/grub.d/10_hurd.in;
   installdir = grubconf;
 };
+*/
 
 script = {
   name = '10_linux';