Remove slices of pointers to make conversion-gen happy

[fiunchinho]

What type of PR is this?

/kind feature

What this PR does / why we need it:

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 #701

Special notes for your reviewer:

Checking the PRs on CAPI and CAPA, it seems the slices need to be changed on old api versions too (like v1alpha3 or v1alpha4), not just in the latest api version.

TODOs:

• squashed commits
• includes documentation
• adds unit tests

Release note:

Remove slices of pointers to make conversion-gen happy

[k8s-ci-robot]

Hi @fiunchinho. 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.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[enxebre]

/ok-to-test

[fiunchinho]

/test pull-cluster-api-provider-gcp-build

[k8s-ci-robot]

@fiunchinho: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-cluster-api-provider-gcp-apidiff	d3b03d7	link	false	/test pull-cluster-api-provider-gcp-apidiff

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository. I understand the commands that are listed here.

[fiunchinho]

/test pull-cluster-api-provider-gcp-e2e-workload-upgrade

[cpanato]

thanks

/lgtm
/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: cpanato, fiunchinho

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