Update AwsClusterTemplate printcolumn and remove unnecessary RBAC files

[pydctw]

What type of PR is this?
/kind cleanup

What this PR does / why we need it:

1. Added printcolumn, Age, to AWSClusterTemplate. This is in line with other templates like KubeadmControlplaneTemplate or DockerClusterTemplate in CAPI.
2. Deleted unnecessary RBAC roles created for AWSClusterTemplate

Also, cleaned up a duplicate kubebuilder marker for AWSManagedControlPlane

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 #

Special notes for your reviewer:

Checklist:

• squashed commits
• includes documentation
• adds unit tests
• adds or updates e2e tests

Release note:

NONE

[k8s-ci-robot]

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[pydctw]

/hold

[pydctw]

cc @ykakarap. Removing the RBAC files as part of this PR.

[pydctw]

/hold cancel

[Ankitasw]

Hey @pydctw , thanks for the PR.
Could you give some context for why this Age column is needed?

Added printcolumn, Age, to AWSClusterTemplate

[pydctw]

Hey @pydctw , thanks for the PR. Could you give some context for why this Age column is needed?

Added printcolumn, Age, to AWSClusterTemplate

This is following the convention of newly added templates for ClusterClass in CAPI. Making them consistent.

• KCPTemplate
• DockerClusterTemplate

[ykakarap]

+1 to dropping these RBAC files. We dont use them and can be dropped safely.

[Ankitasw]

/lgtm

[sedefsavas]

/approve

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