Revert "OpenJDK 11: Merging in java.util.concurrent.atomic.AtomicInteger"

This reverts commit 9d35a84bb0994f866b791660ac3afba17587bb3c.

Reason for revert: Failure on git_master-art-host/art-jit-on-first-use-gcstress

Bug: 194471075
Bug: 188889082
Change-Id: Idcb70c1cbb44f2e050e6662058d5d7b70822a8b1
4 files changed