Update the file GC to cleanup unused runtime images.

Bug: 299442352
Test: atest ArtServiceTests
Test: atest art_standalone_artd_tests
Test: adb shell pm art cleanup
Change-Id: I1e46a442a909d39f01cdf3d843839564115b2ef5
Merged-In: I1e46a442a909d39f01cdf3d843839564115b2ef5
11 files changed