chore(authenticate): remove deprecated authenticate:login and credentials field

[louisruch]

Removes authenticate:login as well as the deprecated credentials field in authenticate

[louisruch]

@jefferai @talanknight PTAL this removes deprecated fields from the authenticate domain
@randallmorey just confirming there will be no UI issues with this

[ghost]

@louisruch can you summarise the change in plain English? I mostly understand the Go but want to confirm. It looks like the :authenticate:login endpoint goes away and the credentials field is removed.

[louisruch]

@louisruch can you summarise the change in plain English? I mostly understand the Go but want to confirm. It looks like the :authenticate:login endpoint goes away and the credentials field is removed.

@randallmorey yes, so the :authenticate:login endpoint was deprecated in 0.2.0 https://github.com/hashicorp/boundary/blob/main/CHANGELOG.md#deprecationschanges-4 this undoing the 0.1.6 deprecation of :authenticate
We also deprecated the credentials field in :authenticate to instead use attributes I believe this was done to support OIDC also see 0.2.0 changelog

[ghost]

@louisruch can you summarise the change in plain English? I mostly understand the Go but want to confirm. It looks like the :authenticate:login endpoint goes away and the credentials field is removed.

@randallmorey yes, so the :authenticate:login endpoint was deprecated in 0.2.0 https://github.com/hashicorp/boundary/blob/main/CHANGELOG.md#deprecationschanges-4 this undoing the 0.1.6 deprecation of :authenticate
We also deprecated the credentials field in :authenticate to instead use attributes I believe this was done to support OIDC also see 0.2.0 changelog

Thank you. Approved! FE is on the latest.