Add UT for reconcileDelete function

[KeerthanaAP]

What this PR does / why we need it:
Adds UT for reconcile delete functionality
Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Partially Fixes #1818

Special notes for your reviewer:

/area provider/ibmcloud

1. Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

Release note:

[k8s-ci-robot]

Hi @KeerthanaAP. Thanks for your PR.

I'm waiting for a kubernetes-sigs member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[Karthik-K-N]

/ok-to-test

[Karthik-K-N]

LGTM
/cc @Amulyam24

[Amulyam24]

@KeerthanaAP, minor comment otherwise LGTM!

[Prajyot-Parab]

/lgtm

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: KeerthanaAP, Prajyot-Parab

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• OWNERS [Prajyot-Parab]

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