⚠️ Removing CloneTemplate and CloneTemplateInput

[knabben]

What this PR does / why we need it:
Removing deprecated CloneTemplate and CloneTemplateInput

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Part of #7713

[fabriziopandini]

/retest

[fabriziopandini]

lgtm pending CI singal
could you kindly add one line for this change in https://main.cluster-api.sigs.k8s.io/developer/providers/v1.3-to-v1.4.html#removals (this is a doc provider look at when upgrading)

[fabriziopandini]

/lgtm
/approve

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: 28dd0ed8509db889b22055824a9979e1d3bf28d1

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fabriziopandini

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[k8s-ci-robot]

@knabben: 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-apidiff-main	d485bbe	link	false	/test pull-cluster-api-apidiff-main

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.

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[sbueringer]

Thx!

/lgtm

[k8s-ci-robot]

LGTM label has been added.

Git tree hash: aeeec4f33bc03822d10acd50ef020a1de6b7d2f0