NO-JIRA: clean-up generated dashboards

[simonpasquier]

This change also removes the dependency on the etcd mixin since everything is now managed by the etcd operator.

• [ ] I added CHANGELOG entry for this change.
• [x] No user facing changes, so no entry in CHANGELOG was needed.

[openshift-ci-robot]

@simonpasquier: This pull request explicitly references no jira issue.

In response to [this](https://github.com/openshift/cluster-monitoring-operator/pull/2479): >This change also removes the dependency on the etcd mixin since everything is now managed by the etcd operator. > > > >* [ ] I added CHANGELOG entry for this change. >* [ ] No user facing changes, so no entry in CHANGELOG was needed. > Instructions for interacting with me using PR comments are available [here](https://prow.ci.openshift.org/command-help?repo=openshift%2Fcluster-monitoring-operator). If you have questions or suggestions related to my behavior, please file an issue against the [openshift-eng/jira-lifecycle-plugin](https://github.com/openshift-eng/jira-lifecycle-plugin/issues/new) repository.

[simonpasquier]

/skip

[simonpasquier]

/retest-required

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: marioferh, simonpasquier, slashpai

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

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/openshift/cluster-monitoring-operator/blob/master/OWNERS)~~ [marioferh,simonpasquier,slashpai] 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]

/retest-required

Remaining retests: 0 against base HEAD 7ecea923bb9acbfea510502675547440f9a7d0a7 and 2 for PR HEAD e54cac6cb979d5ee3dfe05678866da1fb76bdc87 in total

[openshift-ci[bot]]

@simonpasquier: 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
ci/prow/e2e-aws-ovn-single-node	e54cac6cb979d5ee3dfe05678866da1fb76bdc87	link	false	/test e2e-aws-ovn-single-node

Full PR test history. Your PR dashboard.

Instructions for interacting with me using PR comments are available [here](https://git.k8s.io/community/contributors/guide/pull-requests.md). If you have questions or suggestions related to my behavior, please file an issue against the [kubernetes-sigs/prow](https://github.com/kubernetes-sigs/prow/issues/new?title=Prow%20issue:) repository. I understand the commands that are listed [here](https://go.k8s.io/bot-commands).

[openshift-bot]

[ART PR BUILD NOTIFIER]

Distgit: cluster-monitoring-operator This PR has been included in build cluster-monitoring-operator-container-v4.18.0-202409201540.p0.g2d2be50.assembly.stream.el9. All builds following this will include this PR.