Motivation:
HttpToHttp2ConnectionHandler is awaiting on a future and a latch that may be competed before the buffers actually get released. This test is attempting to validate that the buffer's refCnt() is 0 but there is no mechanism to wait on for a buffer's release() method to be called.
Modifications:
Remove the buffer refCnt() check. The leak profile is designed to pick these up.
Result:
Unit tests that no longer have a race condition.
cc8140b41c