Discard the use of Altinn.Clients.Maskinporten package in Altinn.App.Core

[RonnyB71]

Description

As part of the Maskinporten roadmap issue a new Maskinporten Client have been added to Altinn.App.Core. This effectively deprecates the use of the MaskinportenHttpClient from the Altinn.Clients.Maskinporten Nuget package.

With the exception of any custom maskinporten usage in applications we have three integrations using Maskinporten:

1. eFormidling
2. Altinn Event
3. DAN

The new implementation have been tested and works "out-of-the-box" with DAN. However, our current eFormidling implementation, which in turn depends on Altinn Event, has a service that depends on IMaskinportenService and also a newer implementation depends on IMaskinportenTokenProvider.

We should remove the Altinn.Clients.Maskinporten Nuget package in favour of our own implementation and also rewrite existing integrations for eFormidling and Altinn Event.

Additional Information

No response

Tasks

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Acceptance Criterias

• The Altinn.Clients.Maskinporten package should be removed
• The new MaskinportenClient should replace existing Maskinporten based integrations
• Migration script should be created for existing applications if possible