Revert^2 "Pass `ArenaAllocator` to JNI compiler."

This reverts commit aa5a644f17aab27dee172642a276bd24e69a5b54.

Reason for revert: The original CL was wrongly blamed for
unrelated breakage. The LUCI row contains 6 red cells but
one is a known flake and the other 5 are mis-attributed and
clicking through to the manifests reveals the real culprit
to be https://android-review.googlesource.com/2049787 .

Change-Id: Ie34d9652d3cbe882a73f9eece0d30dfd9a3d15a6
Test: Rely on TreeHugger.
Bug: 181943478
3 files changed