FINERACT-2801: Remove unused (dead) code in fineract-working-capital-…

[SamaSVM]

Description

Removes unused code from fineract-working-capital-loan only.

Removed code with no references found anywhere in the codebase:

• Unused method: method in WorkingCapitalLoanCOBWorkerConfiguration

No functional changes were introduced; application behavior remains unaffected.

Checklist

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