chore: cleanup some knative const

[liangyuanpeng]

Fixes #N/A

Description

part of #332

/assign @jonathan-innis

How was this change tested?

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

[k8s-ci-robot]

Hi @liangyuanpeng. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[liangyuanpeng]

/kind cleanup

[coveralls]

Pull Request Test Coverage Report for Build 10502747905

Details

• 0 of 1 (0.0%) changed or added relevant line in 1 file are covered.
• 6 unchanged lines in 3 files lost coverage.
• Overall coverage increased (+0.03%) to 77.879%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pkg/operator/logging/logging.go	0	1	0.0%

Files with Coverage Reduction	New Missed Lines	%
pkg/test/expectations/expectations.go	2	94.64%
pkg/controllers/disruption/drift.go	2	89.66%
pkg/scheduling/requirements.go	2	98.01%

Totals
Change from base Build 10499123622:	0.03%
Covered Lines:	8900
Relevant Lines:	11428

---

💛 - Coveralls

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: liangyuanpeng
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[k8s-ci-robot]

PR needs rebase.

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[github-actions]

This PR has been inactive for 14 days. StaleBot will close this stale PR after 14 more days of inactivity.