Run 2to3 -f future . -w

This will remove imports from __future__ that are no longer needed.

https://docs.python.org/3.5/library/2to3.html#2to3fixer-future

lms/djangoapps/instructor_task/config/models.py

@@ -2,7 +2,7 @@
 Models for configuration of settings relevant
 to instructor tasks.
 """
-from __future__ import absolute_import
+
 
 from config_models.models import ConfigurationModel
 from django.db.models import IntegerField

lms/djangoapps/instructor_task/config/waffle.py

@@ -2,7 +2,7 @@
 This module contains various configuration settings via
 waffle switches for the instructor_task app.
 """
-from __future__ import absolute_import
+
 
 from openedx.core.djangoapps.waffle_utils import CourseWaffleFlag, WaffleFlagNamespace, WaffleSwitchNamespace