Remove dead test fixtures (#1284)

src/tests/plugins/test_sendmail.py

@@ -5,7 +5,7 @@ from django.core import mail as djmail
 from django.utils.timezone import now
 
 from pretix.base.models import (
-    Event, Item, ItemCategory, Order, OrderPosition, Organizer, Team, User,
+    Event, Item, Order, OrderPosition, Organizer, Team, User,
 )
 
 
@@ -27,12 +27,6 @@ def item(event):
     return Item.objects.create(name='Test item', event=event, default_price=13)
 
 
-@pytest.fixture
-def item_category(event):
-    """Returns an item category instance"""
-    return ItemCategory.objects.create(event=event)
-
-
 @pytest.fixture
 def order(item):
     """Returns an order instance"""