Authentication: Be more open for login flows

[manuroe]

The code has a very old restriction where all login (or registration) flows exposed by the HS must be supported.
It was used to detect CAS and SSO before SSO was specified in the matrix spec.

The code at https://github.com/matrix-org/matrix-ios-kit/blob/v0.12.21/MatrixKit/Controllers/MXKAuthenticationViewController.m#L721-L730 should be removed.

[richvdh]

@manuroe is this now fixed?

[anoadragon453]

This has been fixed in matrix-org/matrix-ios-kit@1638b54, and should be in the next release according to @manuroe.

[manuroe]

True. It will be available on 1.0.15.