Code cleanup
Code cleanup

refs #5479

Fixed bug where two subsequent delete requests would get through, since
the store_data was different.

Removed django.utils.simplejson in favor of json. Replaced len(queryset)
with queryset.count()

artefactual/archivematica-storage-service,artefactual/archivematica-storage-service,artefactual/archivematica-storage-service,artefactual/archivematica-storage-service