remove --crds-version from "velero install" command

[blackpiglet]

Describe the problem/challenge you have
#4382 complete velero migration from kubebuilder v2 to v3. After that, only apiextensions.k8s.io/v1 is supported, so there is no need to keep the --crds-version parameter to choose CRD version.

Describe the solution you'd like
Open this issue to trace removing the --crds-version parameter task.

Anything else you would like to add:
None

Environment:

• Velero version (use velero version): v1.8
• Kubernetes version (use kubectl version): 1.21
• Kubernetes installer & version: kind
• Cloud provider or hardware configuration: none
• OS (e.g. from /etc/os-release): MacOS

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[reasonerjt]

Please double check if this param is referenced in the doc and make sure it is removed also.

[blackpiglet]

Please double check if this param is referenced in the doc and make sure it is removed also.

Got it. Checked the document. There is no recording of this parameter in documents.
Close this issue.