remove lots of unused code

src/documents/management/commands/document_renamer.py

@@ -5,23 +5,16 @@ from django.core.management.base import BaseCommand
 from django.db.models.signals import post_save
 
 from documents.models import Document
-from ...mixins import Renderable
 
 
-class Command(Renderable, BaseCommand):
+class Command(BaseCommand):
 
     help = """
         This will rename all documents to match the latest filename format.
     """.replace("    ", "")
 
-    def __init__(self, *args, **kwargs):
-        self.verbosity = 0
-        BaseCommand.__init__(self, *args, **kwargs)
-
     def handle(self, *args, **options):
 
-        self.verbosity = options["verbosity"]
-
         logging.getLogger().handlers[0].level = logging.ERROR
 
         for document in tqdm.tqdm(Document.objects.all()):