[release-1.9] 🌱 Remove OCNE providers

[k8s-infra-cherrypick-robot]

This is an automated cherry-pick of #11830

/assign sbueringer

[fabriziopandini]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: f0da8f211d81d9a8008bf0be648384e05fbcfdc6

[k8s-ci-robot]

@k8s-infra-cherrypick-robot: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cluster-api-apidiff-release-1-9	8e235a4	link	false	/test pull-cluster-api-apidiff-release-1-9

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[sbueringer]

/area clusterctl
/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini, sbueringer

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