Decommission tabaluga (or use for spares, or fix)

[grischard]

We've abandoned tabaluga (#834)

• [x] Remove Chef config
• [ ] Wipe Disks (already done?)
• [x] Remove DNS
• [ ] De-rack
• [ ] Disposed

Alternatively, the motherboard (~60€) can be changed, or the machine (~€300-500) can be replaced to use the remaining hardware in it.

[Firefishy]

Motherboard Part number: 843307-001

[Firefishy]

I have bought a replacement motherboard for £41.39 and will attempt to repair the system on the upcoming AM6 visit.

The purchase was agreed in discussion with the Ops team.

[Firefishy]

Motherboard (+chassis) replaced. Some iLo DHCP issue to resolve but otherwise looks ok.