Revert "Use framework boot image extension."

The revert is partial: we keep permitted paths to the ART apex
in the linker config.

This reverts commit 5c8cc64b5f1580faf510f27527e7e22987174963.

Reason for revert: breaks avd/avd_boot_health_check test
  on cf_x86_phone-userdebug_coverage on branch rvc-release
  (the device fails to boot).

Test: m
Test: aosp_walleye-userdebug boots

Bug: 145749668

Exempt-From-Owner-Approval: revert

Change-Id: I47f3e05a2f6beed9b4c4e9675a7668fbaafc0474
2 files changed