Resolved flake8 warnings

src/tests/control/test_user.py

@@ -1,4 +1,3 @@
-from django.utils.timezone import now
 from pretix.base.models import User
 from tests.base import BrowserTest
 

src/tests/presale/test_account.py

@@ -1,4 +1,3 @@
-import datetime
 import time
 from pretix.base.models import User
 from tests.base import BrowserTest

src/tests/presale/test_orders.py

@@ -268,7 +268,7 @@ class OrdersTest(TestCase):
         self.order.save()
         response = self.client.get(
             '/%s/%s/order/%s/download/testdummy' % (self.orga.slug, self.event.slug, self.order.code),
-            )
+        )
         assert response.status_code == 200
         assert response.content.strip().decode() == self.order.identity
 

src/tests/settings.py

@@ -1,4 +1,4 @@
-from pretix.settings import *
+from pretix.settings import *  # NOQA
 
 TEST_DIR = os.path.dirname(__file__)
 

src/tests/testdummy/__init__.py

@@ -12,7 +12,7 @@ class TestDummyApp(AppConfig):
         version = '1.0.0'
 
     def ready(self):
-        from tests.testdummy import signals
+        from tests.testdummy import signals  # noqa
 
 
 default_app_config = 'tests.testdummy.TestDummyApp'