Remove format.pods func, instead with klog.Kobjs

[yuzhiquan]

What type of PR is this?

/kind cleanup

What this PR does / why we need it:

Remove format.pods func, instead with klog.Kobjs

Which issue(s) this PR fixes:

Refs #102434

Special notes for your reviewer:

Does this PR introduce a user-facing change?

NONE

Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:

/wg structured-logging
@kubernetes/wg-structured-logging-members
/priority important-soon
/triage accepted
/cc @serathius

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[serathius]

/lgtm
/assign @sjenning @ehashman

[ehashman]

/lgtm

good to go since #104103 merged

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: mrunalp, yuzhiquan

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