Remove compatibility code for old Django versions

src/auditlog_tests/test_settings.py

@@ -2,7 +2,6 @@
 Settings file for the Auditlog test suite.
 """
 import os
-import django
 
 SECRET_KEY = 'test'
 
@@ -17,27 +16,17 @@ INSTALLED_APPS = [
     'multiselectfield',
 ]
 
-middlewares = (
+MIDDLEWARE = [
     'django.middleware.common.CommonMiddleware',
     'django.contrib.sessions.middleware.SessionMiddleware',
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'django.contrib.messages.middleware.MessageMiddleware',
     'auditlog.middleware.AuditlogMiddleware',
-)
-
-if django.VERSION < (1, 10):
-    MIDDLEWARE_CLASSES = middlewares
-else:
-    MIDDLEWARE = middlewares
-
-if django.VERSION <= (1, 9):
-    POSTGRES_DRIVER = 'django.db.backends.postgresql_psycopg2'
-else:
-    POSTGRES_DRIVER = 'django.db.backends.postgresql'
+]
 
 DATABASES = {
     'default': {
-        'ENGINE': POSTGRES_DRIVER,
+        'ENGINE': 'django.db.backends.postgresql',
         'NAME': 'auditlog' + os.environ.get("TOX_PARALLEL_ENV", ""),
         'USER': 'postgres',
         'PASSWORD': '',

src/auditlog_tests/urls.py

@@ -1,13 +1,7 @@
-import django
-from django.conf.urls import include, url
+from django.conf.urls import url
 from django.contrib import admin
 
 
-if django.VERSION < (1, 9):
-    admin_urls = include(admin.site.urls)
-else:
-    admin_urls = admin.site.urls
-
 urlpatterns = [
-    url(r'^admin/', admin_urls),
+    url(r'^admin/', admin.site.urls),
 ]