Revert^2 "Store and check apex-versions in boot images."

This reverts commit 5bd22087faeb2caf5057aaab63717afab082f447.

Reason for revert: Fixed the breakage by skipping the check for the
  boot image in the ART APEX.

Bug: 211973309
Test: atest odsign_e2e_tests
Test: Build a system image, flash it to device and run
  `atest art_standalone_dexpreopt_tests`.
Test: Build an ART APEX, install it to a device (to simulate the MTS
  environment), and run `atest art_standalone_oatdump_tests`.
Change-Id: I396c3c8577f5169744d96bb1d9714111e5f7bbe6
6 files changed