diff --git a/xos/__init__.py b/xos/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/xos/__init__.py
+++ /dev/null
diff --git a/xos/core/models/plcorebase.py b/xos/core/models/plcorebase.py
index 5d5ae54..dd86bac 100644
--- a/xos/core/models/plcorebase.py
+++ b/xos/core/models/plcorebase.py
@@ -1,19 +1,14 @@
 import datetime
 import json
-import os
 import pytz
 import inspect
 import sys
 import threading
-from django import db
 from django.db import models
 from django.db import transaction
 from django.forms.models import model_to_dict
-from django.core.urlresolvers import reverse
-from django.forms.models import model_to_dict
 from django.utils import timezone
 from django.core.exceptions import PermissionDenied
-from model_autodeletion import ephemeral_models
 from cgi import escape as html_escape
 from journal import journal_object
 from django.db.models.deletion import Collector
@@ -427,10 +422,6 @@
         # filtering of visible objects by user.
         return cls.objects.all()
 
-    @classmethod
-    def is_ephemeral(cls):
-        return cls in ephemeral_models
-
     def tologdict(self):
         try:
             d = {'model_name':self.__class__.__name__, 'pk': self.pk}
diff --git a/xos/model_autodeletion.py b/xos/model_autodeletion.py
deleted file mode 100644
index 6eaf63c..0000000
--- a/xos/model_autodeletion.py
+++ /dev/null
@@ -1 +0,0 @@
-ephemeral_models = ['ReservedResource','Instance','Image','Network','Tag','SitePrivilege','SliceMembership','SliceTag','Reservation','Slice']