fix: Fix 500 errors when clients disconnect

What does this MR do?

Reverts !676 (merged).

When clients disconnect, we now logging 500 error. This leads to alerts and uses up our error budgets.

TODO

• I added the Changelog trailer (e.g. Changelog: added) to the commits that need to be included in the changelog
• I added unit tests or they are not required
• I added acceptance tests or they are not required
• I added documentation (or it's not required)
• I followed code review guidelines
• I followed Go Style guidelines