Remove Loader startup/shutdown as it's not needed

We don't need to startup and shutdown the Loader as we're not running it
as a Daemon. We're invoking its load_msg method and passing it a message
to load directly.

Author: tofu-rocketry

monitoring/validator/views.py

@@ -141,12 +141,8 @@ def load(record: str) -> str:
 
         loader = Loader(qpath, record, db_backend, db_host, db_port, db_name, db_username, db_password, pidfile)
 
-        loader.startup()
-
         loader.load_msg(record, signer)
 
-        loader.shutdown()
-
         return("Record(s) will load successfully!")
 
     except (ApelDbException, InvalidRecordException, LoaderException, RecordFactoryException) as e: