Remove python 3.6 uncompatible code

Author: marlontrapp

tests/factories.py

@@ -1,27 +1,16 @@
-from typing import Generic, TypeVar
-
 import factory
 import waffle
 from django.contrib.auth import get_user_model
 
-T = TypeVar("T")
 FlagModel = waffle.get_waffle_flag_model()
 UserModel = get_user_model()
 
 
-class BaseFactory(Generic[T], factory.django.DjangoModelFactory):
-    """This is a workaround to get type hints to play nice with factory boy."""
-
-    @classmethod
-    def create(cls, **kwargs) -> T:
-        return super().create(**kwargs)
-
-
-class FlagFactory(BaseFactory[FlagModel]):
+class FlagFactory(factory.django.DjangoModelFactory):
     class Meta:
         model = FlagModel
 
 
-class UserFactory(BaseFactory[UserModel]):
+class UserFactory(factory.django.DjangoModelFactory):
     class Meta:
         model = UserModel