kubelet.spec: Remove deps: conntrack*/iproute*/ethtool

[travier]

kubelet.spec: Remove deps: conntrack*/iproute*/ethtool

According to [1] & [2], the kubelet is no longer relying on the
following binaries:

• conntrack since Kubernetes 1.24.
• iproute / iproute2
• ethtool

Thus drop the dependencies.

[1] coreos/rhel-coreos-config#42
[2] #4106

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Remove a dependency on a package that is no longer used.

Which issue(s) this PR fixes:

None

Special notes for your reviewer:

Does this PR introduce a user-facing change?

Remove the dependency on conntrack and conntrack-tools for the kubelet package.

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[travier]

CC @danwinship for confirmation.

[danwinship]

Yeah, this is true.

You can remove the iproute/iproute2 and ethtool packages too. Those would have been needed for the old kubenet networking, but are not used by present-day kubelet.

[cpanato]

/ok-to-test

[cpanato]

/assign @xmudrii @mbianchidev

[travier]

You can remove the iproute/iproute2 and ethtool packages too. Those would have been needed for the old kubenet networking, but are not used by present-day kubelet.

Thanks, updated.

[mbianchidev]

/lgtm

[xmudrii]

/lgtm
/approve

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: travier, xmudrii

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[buckaroogeek]

Greetings. I help maintain the Kubernete spec files for the Fedora repository. Would this change be for 1.34 only or can it also be applied to 1.33 and earlier?

thank you

[danwinship]

I believe it applies back to 1.24

[buckaroogeek]

@danwinship - Thank you!