Remove deprecated v1 provider id format

[Karthik-K-N]

/kind feature
/area provider/ibmcloud

Describe the solution you'd like
[A clear and concise description of what you want to happen.]

Recently we have deprecated v1 provider id format #1897 , Consider removing it in next release.

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

[k8s-triage-robot]

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/lifecycle stale

[mkumatag]

/remove-lifecycle stale

[Prajyot-Parab]

/assign @Prajyot-Parab