Reduce calico bird route removal time to improving Kubernetes node removal performance

[khatrig]

What type of PR is this?

/kind feature

What this PR does / why we need it:

As part of Kubernetes node removal, calico bird route cleanup on large clusters(3000+ pods running) takes 45+ minutes. This PR reduces the reset playbook runtime to less than one minute.

Which issue(s) this PR fixes:

Fixes # 8116

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[Calico] Reduced calico bird route removal time on large clusters to less than one minute improving Kubernetes node removal performance

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[k8s-ci-robot]

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[khatrig]

@jayonlau , can you please help review this?

[cristicalin]

I don't think it is really the intention to reset a cluster with running workloads on it but a speed improvement is welcomed for sure.

/ok-to-test

[floryut]

@khatrig Thanks for the PR, this looks fine, perf improvement ftw 😉

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: floryut, khatrig

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[cristicalin]

/lgtm