Add an artd method to delete runtime image files.

Bug: 299442352
Test: atest art_standalone_artd_tests
Change-Id: Ibc31bd5c0ad2d5d3ea1cfa427f76e1dc6fc93b11
Merged-In: Ibc31bd5c0ad2d5d3ea1cfa427f76e1dc6fc93b11
12 files changed