Finish extracting UI tests for set branding
Finish extracting UI tests for set branding

In response to: [^1].

The behaviour of the letter branding page is unchanged with set
branding, so we don't need an extra (and previously, broken [^2])
test for it. The email branding page shows a preview of existing
branding if it's set, so it's worth keeping that part of the test.

[^1]: https://github.com/alphagov/notifications-admin/pull/4182#discussion_r825998534
[^2]: https://github.com/alphagov/notifications-admin/pull/4182#discussion_r825999860

alphagov/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin