test: fix drift/expiration test flakes

[njtran]

Fixes #N/A

Description
Fix some tests with disruption that had unnecessary cordon logic causing replacement nodes when we wanted delete actions only.

How was this change tested?
TEST_SUITE="Expiration" make e2etests
TEST_SUITE="Drift" make e2etests

Does this change impact docs?

• Yes, PR includes docs updates
• Yes, issue opened: #
• No

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[njtran]

/karpenter snapshot

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[coveralls]

Pull Request Test Coverage Report for Build 7791788317

Warning: This coverage report may be inaccurate.

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A quick fix for this PR: rebase it; your next report should be accurate.

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.02%) to 82.61%

---

Files with Coverage Reduction	New Missed Lines	%
pkg/providers/amifamily/ami.go	1	90.32%

Totals
Change from base Build 7763246327:	-0.02%
Covered Lines:	5007
Relevant Lines:	6061

---

💛 - Coveralls

[github-actions]

Snapshot successfully published to oci://021119463062.dkr.ecr.us-east-1.amazonaws.com/karpenter/snapshot/karpenter:v0-4234f0e906dbca83fa35ac51245d1131a2507bda.
To install you must login to the ECR repo with an AWS account:

aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin 021119463062.dkr.ecr.us-east-1.amazonaws.com

[engedaam]

LGTM 🚀

[engedaam]

LGTM 🚀