feat(RELEASE-1102): remove unused data.fbc params

[theflockers]

this commit removes iibServiceConfigSecret and iibOverwriteFromIndexCredential as both are paremeters pinned by the FBC pipeline and should not be rewritten.

Description

Please include a summary of the changes and the related issue. Please also include relevant motivation and context. List any dependencies that are required for this change.

Issue ticket number and link

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Checklist:

• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added meaningful description with JIRA/GitHub issue key(if applicable), for example HASSuiteDescribe("STONE-123456789 devfile source")
• I have updated labels (if needed)

[theflockers]

@jinqi7 can you please LGTM this? The code is already in prod and the e2e is not merged yet.

[psturc]

/retest

[jinqi7]

/approve
/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: jinqi7

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[jinqi7]

/hold
The CI checks passed long time ago. The PR need to be rebased.

[jinqi7]

/retest

[openshift-ci]

New changes are detected. LGTM label has been removed.

[jinqi7]

/unhold
/retest