Follow #36058 for API edit user bug when editing email.
- The Admin Edit User API includes a breaking change. Previously, when
updating a user with an email from an unallowed domain, the request
would succeed but return a warning in the response headers. Now, the
request will fail and return an error in the response body instead.
- Removed `AdminAddOrSetPrimaryEmailAddress` because it will not be used
any where.
Fix https://github.com/go-gitea/gitea/pull/36058#issuecomment-3600005186
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Co-authored-by: Giteabot <teabot@gitea.io>
e30a130b9a