In PR https://github.com/apache/airflow/pull/63452, I remove old custom Airflow OTEL "wrapper" interfaces.
*The important question is whether we need to keep any backcompat layer.* The conclusion I've come to, after thinking it through with Jarek and Christos, is that these interfaces were not really intended to be user-facing, and the likelihood that users put them in their dags is sufficiently low that we can simply remove them. One thing to point out is that these classes were never released *in their present locations.* They were initially moved to their present locations in https://github.com/apache/airflow/pull/56187, notably without maintaining any backcompat importability from the old location. It's notable because, given that there were many reviewers of that PR, it's suggestive of the conclusion that people did not think of this as user-facing code. Additionally, there is no documentation that suggests that users use these interfaces. These interfaces were made unnecessary by https://github.com/apache/airflow/pull/62554 and some other PRs that preceded it. So I think the appropriate course of action is to remove them. But if anyone has any concerns, we can convert this to a discussion item. Thanks for your consideration. Daniel
