Disable atomic requests

Retrospectively, there is no reasonto wrap every request in a
transaction of its own. Developer should actively consider isolation
in their code.

This came up while trying to figure out how to delay every Celery task
until commit, finding us monkey-patching amqp, and failing.

aleksis/core/settings.py

@@ -196,7 +196,6 @@ DATABASES = {
         "PASSWORD": _settings.get("database.password", None),
         "HOST": _settings.get("database.host", "127.0.0.1"),
         "PORT": _settings.get("database.port", "5432"),
-        "ATOMIC_REQUESTS": True,
         "CONN_MAX_AGE": _settings.get("database.conn_max_age", None),
     }
 }