Revert "Add boot.art.rel files to system image"

This reverts commit d616e0e8.

Reason for revert: b/72207339 - user builds are failing with this change

Bug: 72207339
Bug: 66697305
Change-Id: Ia309d04d837851ae11518f05aca468ecca895e6f
Test: Before the revert, taimen-user does not build.  After the revert taimen-user builds