ExportableModule no longer implements OutputFileProducer

multitree.ExportableModule no longer implements
android.OutputFileProducer

In the context of incremental soong, the output files
inter-module-communication will be through OutputFilesProvider.
The OutputFileProducer interface will be deprecated.

ApiSurface and apexBundle are included in this change.

Test: CI
Bug: 339477385
Change-Id: I9247bb2dfed270a879f8bc96c6aa06803fde0150