Drop support for ISOLINUX_DEFAULT

This environment variable was used by simple-cdd to force the default
installation option to the graphical installer. Now that we have the
syslinux VESA menu, the option has become rather pointless.

See #512303 for discussion.

debian/changelog

@@ -4,6 +4,8 @@ debian-cd (3.1.1) UNRELEASED; urgency=low
   * sparc: ensure the default 'install' option also gets KERNEL_PARAMS set.
   * start_new_disc: fix a typo so that DISC_PKG_HOOK might work. Thanks to
     Jonathan Hall for the patch. Closes: #513421
+  * boot-x86: drop support for no longer really useful ISOLINUX_DEFAULT
+    environment variable (see #512303 for discussion).
 
  -- Frans Pop <fjp@debian.org>  Tue, 20 Jan 2009 01:30:11 +0100
 

tools/boot/lenny/boot-x86

@@ -234,13 +234,6 @@ if [ "$THISTYPE" = "isolinux" ]; then
 	cp -f $CDDIR/../syslinux/usr/lib/syslinux/isolinux.bin boot$N/isolinux/
 	cp -f $CDDIR/../syslinux/usr/lib/syslinux/vesamenu.c32 boot$N/isolinux/
 
-	# FIXME - this is broken for the current setup which no longer
-	# has a 'default' statement in isolinux.cfg
-	if [ -n "$ISOLINUX_DEFAULT" ]; then
-		sed -i "s/^DEFAULT .*$/DEFAULT $ISOLINUX_DEFAULT/" \
-			boot$N/isolinux/isolinux.cfg
-	fi
-
 	if [ -z "$MULTIARCH" ]; then
 		# Set up isolinux dir for only the current arch
 		# Last two for Lenny RC1 compatibility