Cleanup shell context

nopaque.py

 import eventlet
 eventlet.monkey_patch()
 from app import create_app, db, socketio
-from app.models import Corpus, User, Role, Permission, Job
+from app.models import Corpus, Job, Role, User
 from flask_migrate import Migrate
 import os
 
@@ -12,12 +12,7 @@ migrate = Migrate(app, db)
 
 @app.shell_context_processor
 def make_shell_context():
-    return dict(db=db,
-                Corpus=Corpus,
-                User=User,
-                Role=Role,
-                Permission=Permission,
-                Job=Job)
+    return {'db': db, 'Corpus': Corpus, 'Job': Job, 'User': User}
 
 
 @app.cli.command()