⚠️ remove kustomize/v1, go/v2 and go/v3, and configurations for Project Config v2 related to legacy Kubebuilder CLI version < 3

[camilamacedo86]

Description
Remove deprecated plugins and doc sections as specific related tests.

• Remove golang v2 and v3
• Remove kustomize/v1

Motivation
Maintainability and better usability
More info: #3622
(began to prepare the master branch for a V4 release)

[camilamacedo86]

/hold

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: camilamacedo86

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[camilamacedo86]

/hold cancel

[camilamacedo86]

Hi @varshaprasad96 and @everettraven

I will wait until next week for us start to removing all stuff
So that we have an easy chance to release, like 3.14.1, and address any bugs or minor issues before.

Because changes in the API, it must be merged manually, so if you are able to look at and approve this one that would be great and we will only move forward anyway manually from next week

[varshaprasad96]

Took a first quick pass it looks good. I'll take a deeper look again.

[camilamacedo86]

HI @varshaprasad96

Thank you a lot.
It is updated now.

Let's to do a patch release for what was fixed so far and then we can start to get this one merged and start to work in our MAJOR version bump Kubebuilder v4 as we have speaking so far where we have all cleaned up.

:-)

/hold

[k8s-ci-robot]

@camilamacedo86: 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-kubebuilder-e2e-k8s-1-29-0	0ef3140	link	true	/test pull-kubebuilder-e2e-k8s-1-29-0

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[camilamacedo86]

I am moving within since
@varshaprasad96 already gave a first review
and we are just removing what is deprecated (agreed and communicated a long time ago)

We need to merge this one in order to be able to add support for k8s 1.30 and go 1.22