Evalai: django.setup() not required for Remote submission worker.

[KhalidRmb]

Currently, the remote worker doesn't use the Django app directly as the submission worker does, and only references the models through the public API.

And also the error: django.core.exceptions.ImproperlyConfigured: Requested setting LOGGING_CONFIG, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings. is shown while starting the worker.
Deliverables:

• [x] Remove the statement django.setup() from remote_submission_worker.py.

@RishabhJain2018 @deshraj

[deshraj]

Thanks for opening this issue. It's a really good catch @KhalidRmb. :)