Don't include the bootstrap .debs on live-installer based disks (saves ~30MiB).

Signed-off-by: Chris Lamb <chris@chris-lamb.co.uk>

helpers/lh_binary_debian-installer

@@ -415,6 +415,8 @@ then
 		done
 	fi
 
+	if [ "${LH_DEBIAN_INSTALLER}" != "live" ]
+	then
 		# Including base debian packages
 		if [ -d cache/packages_bootstrap ]
 		then
@@ -429,6 +431,7 @@ then
 			Echo_error "cached - these are required when integrating the Debian Installer."
 			exit 1
 		fi
+	fi
 
 	# Including local debs
 	if Find_files ../config/binary_local-debs/*_"${LH_ARCHITECTURE}".deb