prow: Drop some plugins from coreos/rpm-ostree

[cgwalters]

Most notably drop approve and lgtm, which are responsible
for a lot of comment spam. We are going to experiment
with using the Github-native methods for this.

xref coreos/fedora-coreos-tracker#764

[cgwalters]

/hold
for approval from another coreos/rpm-ostree developer by tomorrow.

[cgwalters]

To be explicit, after this merges PRs to the rpm-ostree repo would use the Github Review Changes -> "Approve" flow for the equivalent of "/approve" and the "Merge after tests pass" button (which...hmm, I think we need a repo admin to enable).

[jlebon]

Definitely interested to try this out!
/lgtm

[cgwalters]

/hold cancel

[kelvinfan001]

I think this is worth experimenting with. I always thought the Github flow was more intuitive and user-firendly, and the reduction in spam feels a lot cleaner too :)

[cgwalters]

/retest

[travier]

Let's give it a try!

[openshift-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: alvaroaleman, cgwalters, jlebon, kelvinfan001, travier

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• core-services/prow/02_config/OWNERS [alvaroaleman]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[openshift-ci-robot]

@cgwalters: Updated the following 4 configmaps:

• plugins configmap in namespace ci at cluster app.ci using the following files:
  • key plugins.yaml using file core-services/prow/02_config/_plugins.yaml
• config configmap in namespace ci at cluster api.ci using the following files:
  • key config.yaml using file core-services/prow/02_config/_config.yaml
• config configmap in namespace ci at cluster app.ci using the following files:
  • key config.yaml using file core-services/prow/02_config/_config.yaml
• plugins configmap in namespace ci at cluster api.ci using the following files:
  • key plugins.yaml using file core-services/prow/02_config/_plugins.yaml

In response to this:

Most notably drop approve and lgtm, which are responsible
for a lot of comment spam. We are going to experiment
with using the Github-native methods for this.

xref coreos/fedora-coreos-tracker#764

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