This removes almost all of the GCP-infrastructure leftovers from my
previous setup.
The DNS configuration is retained, but moves to my user folder
instead.
Change-Id: I1867acd379443882f11a3c645846c9902eadd5b0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/782
Tested-by: BuildkiteCI
Reviewed-by: eta <eta@theta.eu.org>
Reviewed-by: isomer <isomer@tvl.fyi>