Revert "Event-Publisher Flush Queue on Shutdown (#767)"

[seanrees]

This reverts commit 62da77f.

See #789 and internally, DE-5663.

💸 TL;DR

This reverts the above commit because of erroneous BatchFull exception. This branch had changes on top and required a manual revert.

🧪 Testing Steps / Validation

% docker-compose run -i --build --rm baseplate make test

✅ Checks

• [✅ ] CI tests (if present) are passing
• [✅ ] Adheres to code style for repo
• Contributor License Agreement (CLA) completed if not a Reddit employee

[seanrees]

Hey @KTAtkinson -- what's the merge process here like? I don't have powers myself to do so.

[chriskuehl]

Removing the 2.7 label since it looks like this was already merged into the develop branch in #789 and was already released in new versions.

@seanrees do you still need this merged into the v2.5-unsupported-gcp branch? I know this has been sitting around for a while at this point.

[seanrees]

Thanks for following-up @chriskuehl. I'd vote to merge it just so we have the branch at the intended state -- but it's not a big deal either way.