Remove historical audience claim requirements for Data Recipients calling Data Holders defined in the Client Authentication section

[CDR-API-Stream]

Description

The audience claim defined in the "Data Recipients calling Data Holders" client authentication section documents required standards up to March 31st 2021 and then after March 31st 2021. After March 31st 2021, the historical requirements are no longer required.

Area Affected

Client Authentication for Data Recipients calling Data Holders

Change Proposed

Remove the "Until March 31st, 2021" requirements leaving only the requirements for ADRs and DHs going forwards from a post-March 31st 2021 date.

This change should only happen in a release to the data standards made after March 31st 2021.

[CDR-API-Stream]

These changes have been staged for review here: ConsumerDataStandardsAustralia/standards-staging@release/1.8.0...maintenance/369

This change will be incorporated into the changes to be made for #360 if both are approved changes for the iteration.

[CDR-API-Stream]

The outcome of this issue has been approved by the Data Standards Chair for inclusion in v1.9.0. A change to the data standards was recommended.

This issue will be closed accordingly.