Cleanup unused imports

coin/members/admin.py

@@ -1,18 +1,16 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.shortcuts import render, get_object_or_404
+from django.shortcuts import get_object_or_404
 from django.contrib import admin
 from django.contrib import messages
+from django.contrib.admin import SimpleListFilter
 from django.contrib.auth.admin import UserAdmin
-from django.contrib.auth.models import Group, Permission
 from django.contrib.contenttypes.models import ContentType
 from django.http import HttpResponseRedirect
 from django.conf.urls import url
 from django.conf import settings
-from django.db.models.query import QuerySet
 from django.core.urlresolvers import reverse
-from django.utils.html import format_html
 
 from coin.members.models import (
     Member, CryptoKey, LdapUser, MembershipFee, Offer, OfferSubscription, RowLevelPermission)

coin/members/models.py

@@ -10,7 +10,6 @@ from django.db.models import Q, Max
 from django.db.models.signals import pre_save
 from django.dispatch import receiver
 from django.contrib.auth.models import AbstractUser, Permission, UserManager
-from django.contrib.contenttypes.models import ContentType
 from django.conf import settings
 from django.core.validators import RegexValidator
 from django.core.exceptions import ValidationError