Various fixes for private cluster

[howardjohn]

• Give prow deployer access to the cluster
• Give deck access to view logs of the jobs
• Remove ssh mount, which we no longer use
• Cleanup presets, to avoid confusion. Effectively reverts Add some presets back #4124 which just needed a few releases to die out
• Remove AUTH_HEADER setting, this is obsolete now - no authenitkos used

[istio-policy-bot]

🤔 🐛 You appear to be fixing a bug in Go code, yet your PR doesn't include updates to any test files. Did you forget to add a test?

Courtesy of your friendly test nag.

[istio-testing]

@howardjohn: Updated the job-config configmap in namespace default at cluster default using the following files:

• key all-presets.yaml using file prow/cluster/jobs/all-presets.yaml
• key istio-private.api.master.gen.yaml using file prow/cluster/jobs/istio-private/api/istio-private.api.master.gen.yaml
• key istio-private.api.release-1.16.gen.yaml using file prow/cluster/jobs/istio-private/api/istio-private.api.release-1.16.gen.yaml
• key istio-private.api.release-1.17.gen.yaml using file prow/cluster/jobs/istio-private/api/istio-private.api.release-1.17.gen.yaml
• key istio-private.api.release-1.18.gen.yaml using file prow/cluster/jobs/istio-private/api/istio-private.api.release-1.18.gen.yaml
• key istio-private.istio.master.gen.yaml using file prow/cluster/jobs/istio-private/istio/istio-private.istio.master.gen.yaml
• key istio-private.istio.release-1.16.gen.yaml using file prow/cluster/jobs/istio-private/istio/istio-private.istio.release-1.16.gen.yaml
• key istio-private.istio.release-1.17.gen.yaml using file prow/cluster/jobs/istio-private/istio/istio-private.istio.release-1.17.gen.yaml
• key istio-private.istio.release-1.18.gen.yaml using file prow/cluster/jobs/istio-private/istio/istio-private.istio.release-1.18.gen.yaml
• key istio-private.proxy.master.gen.yaml using file prow/cluster/jobs/istio-private/proxy/istio-private.proxy.master.gen.yaml
• key istio-private.proxy.release-1.16.gen.yaml using file prow/cluster/jobs/istio-private/proxy/istio-private.proxy.release-1.16.gen.yaml
• key istio-private.proxy.release-1.17.gen.yaml using file prow/cluster/jobs/istio-private/proxy/istio-private.proxy.release-1.17.gen.yaml
• key istio-private.proxy.release-1.18.gen.yaml using file prow/cluster/jobs/istio-private/proxy/istio-private.proxy.release-1.18.gen.yaml
• key istio-private.release-builder.master.gen.yaml using file prow/cluster/jobs/istio-private/release-builder/istio-private.release-builder.master.gen.yaml
• key istio-private.release-builder.release-1.16.gen.yaml using file prow/cluster/jobs/istio-private/release-builder/istio-private.release-builder.release-1.16.gen.yaml
• key istio-private.release-builder.release-1.17.gen.yaml using file prow/cluster/jobs/istio-private/release-builder/istio-private.release-builder.release-1.17.gen.yaml
• key istio-private.release-builder.release-1.18.gen.yaml using file prow/cluster/jobs/istio-private/release-builder/istio-private.release-builder.release-1.18.gen.yaml

Details

In response to this:

• Give prow deployer access to the cluster
• Give deck access to view logs of the jobs
• Remove ssh mount, which we no longer use
• Cleanup presets, to avoid confusion. Effectively reverts Add some presets back #4124 which just needed a few releases to die out
• Remove AUTH_HEADER setting, this is obsolete now - no authenitkos used

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