Flaky s3_waits_for_full_batch_or_timeout_before_sending

[ktff]

Ref. #2978

Tests that aws_s3 sink batches events.

https://github.com/timberio/vector/pull/3099/checks?check_run_id=886641917
https://github.com/timberio/vector/runs/868843252

[binarylogic]

Thanks @ktff, just so I understand, is there any reason the linked PR didn't close this?

[ktff]

@binarylogic Yes, the linked PR only removed the test, it yet needs to be fixed/rewritten.

Although it can also stay removed. This and #3043 are nice to have, but they aren't useful too much. In case of this test, the batch code is shared with other sinks so it overlaps with other tests.

[binarylogic]

Got it. Let's leave them open so we can review in the future when we get around to tech debt again.

[jszwedko]

Closing since this test was deleted and evidently doesn't appear to have been needed.