fix: Remove obsolete Items field

[Sara-KS]

Issue link

Related issue: (https://github.com/project-codeflare/multi-cluster-app-dispatcher/issues/428)

What changes have been made

Removed obsolete Items[] field

Verification steps

N/A

Checks

• [ ] I've made sure the tests are passing.
• Testing Strategy
  • [ ] Unit tests
  • [ ] Manual tests
  • [x ] Testing is not required for this change

[asm582]

/LGTM

[asm582]

/approve

[openshift-ci[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: asm582

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