As a Broker developer, I need to update the FABS sample file to remove FundingAgencyCode after FABS is updated to no longer require the header
1. Confirm that FundingAgencyCode is no longer a required header in the production Broker (not just that the story has been completed or that it's in dev).
2. Update sample file on "what you need to submit" sub-page to remove FundingAgencyCode header.