Turn down k8s-mungegithub/mungegithub cluster

[spiffxp]

We can do this once:

• perfdash has been migrated (Move perf-dash to community owned infra #549)
• @spiffxp has had a chance to confirm there's really nothing else of value on this cluster

/wg k8s-infra
/area cluster-mgmt
/assign @spiffxp

[spiffxp]

The perfdash deployment was still running there, I scaled it down to 0 yesterday. Will turn this down later today

[spiffxp]

/close
and it's gone

[k8s-ci-robot]

@spiffxp: Closing this issue.

In response to this:

/close
and it's gone

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