Migrate remaining content from ojluni.jaif to stub files.

This change makes no difference to the output of `make metalava-api-stubs-docs`.

The stubs files were generated modified form of metalava, so they are
guaranteed to contain the same members with the same annotations that
currently appear in the API stubs.

One class with no annotations is left in ojluni.jaif after this
change. That class can't be removed without changing the build rules,
because the build will try to invoke tools with empty inputs which
causes failures. A follow-up change will remove all
annotated_java_files.bp and ojluni.jaif, and remove all the build
rules around them.

Test: `make metalava-api-stubs-docs`
Bug: 111639530
Change-Id: I4cddb05aecd55194376ea9924fe08de542f70693