Delete SDM and SDC files on a successful dexopt.

After a successful dexopt (typically during background dexopt job), the
SDM and SDC files become obsolete, so we delete them as an optimization,
to release disk space as soon as possible.

Bug: 377474232
Test: atest ArtServiceTests
Test: atest art_standalone_artd_tests
Change-Id: I9598e3b6d71a2575d73885cc4d772737f9bfb2b6
7 files changed