This reverts commit 037aa6b4caa6a3a726e67e519324b2c0a1ec274a.
The original cause of the revert was a flake introduced because the unit-test could request a frame from the Choreographer if it ran long enough. The availability checks in the choreographer were inaccurate after we intentionally backed out of using the Callback32 variant on 32 bit platforms.
The new tests didn't catch it because of an unrelated issue. In the first version of the patch for review, the proc table was only supposed to run on API levels 29 and above. When @dnfield requested we also get rid of the NDK helpers, the choreographer and additional utilities were added. But the API level gate in the new test harness wasn't removed. This made the tests be skipped. That gate has been removed entirely now. The error that cause the revert because of flakiness will now be a reliable failure.
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