Remove password_reset and own login, redirect to admin/login

Django admin login to be used. Thus we should be able to upgrade to
Django2.0

sikweb/base.py

@@ -102,7 +102,6 @@ INSTALLED_APPS = [
     'auditlog',
     'phonenumber_field',
     'import_export',
-    'password_reset',
 ]
 
 IMPORT_EXPORT_USE_TRANSACTIONS = True

sikweb/urls.py

@@ -26,7 +26,6 @@ import webapp.urls
 import infoscreen.urls
 import members.urls
 import coffee_scale.urls
-import password_reset.urls
 
 urlpatterns = [
     url(r'', include('webapp.urls')),
@@ -38,7 +37,6 @@ urlpatterns = [
 
     # admin
     url(r'^admin/', admin.site.urls),
-    url(r'^reset/', include('password_reset.urls')),
 
     # i18n default view for changing the active language
     url(r'^i18n/', include('django.conf.urls.i18n')),