🌱Remove k8s.io/utils/pointer from repository

[troy0820]

What this PR does / why we need it:
There was a PR that removed most of these references but left them in the test cases. This PR removes the left over references and removes them from the _test.go files

/kind cleanup

• Remove k8s.io/utils/pointer from repository
• Replaced removed pointer with k8s.io/utils/ptr

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes the rest of this PR #7396

Notes for reviewers:

Sorry this PR is so large but most of this was replacing pointer -> ptr

[troy0820]

/area testing

[k8s-ci-robot]

@troy0820: The label(s) area/utils cannot be applied, because the repository doesn't have them.

In response to this:

/area testing
/area utils

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[sbueringer]

@troy0820 Can you please rebase the PR?
I'm waiting with review until after the rebase. Just want to avoid having to review it twice :)

[sbueringer]

Thank you very much!!

Couldn't find anything :)

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: d46f6c0f23242589111b566e958bf0e2a47c0220

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: sbueringer

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