Removed commented dead code.

Reviewed-by: Philippe Godin <pgodin@iweb.com>
Support deployment of disk image with a partition table and still boot from PXE.

Reviewed-by: Simon Malatrait <smalatrait@iweb.com>
List partitions as root (as the kernel needs to reload the partition table).

Reviewed-by: Simon Malatrait <smalatrait@iweb.com>
Revert support for booting custom kernel/initrd on disk image.

Reviewed-by: Mathieu Mitchell <mmitchell@iweb.com>
Merge branch 'openstack-master' into disk-deployment
Merge branch 'disk-deployment'