LoggingExtension is the only remaining use of a deprecated ChainedTransformationDescriptionBuilder.buildAndRegister method. Eliminate that use by switching to implementing a provider of the ExtensionTransformerRegistration ServiceLoader service.

Note that this will involve refactoring the subsystem's resource definition impls to separate the transformation registration aspect from the ResourceDefinition aspect. In the non-deprecated kernel SPIs the two are called from different ServiceLoader services.