Backport of 961d2d4
Necessary because these internals are changing in Hibernate ORM 6.6 as part of
hibernate/hibernate-orm#11227, so this dead code may not compile anymore when we upgrade to the next 6.6.
@jmartisk @gsmet assuming this compiles (meaning the code is really dead even on this branch), could this be merged?
Also, do I need to care about Quarkus 3.15? Because backporting to that branch will be more challenging.
cc @beikov