zproject: Remove absolute_import.

zproject/backends.py

@@ -1,4 +1,3 @@
-from __future__ import absolute_import
 
 import logging
 from typing import Any, Dict, List, Set, Tuple, Optional, Text

zproject/jinja2/__init__.py

@@ -1,4 +1,3 @@
-from __future__ import absolute_import  # Python 2 only
 
 from typing import Any
 

zproject/jinja2/compressors.py

@@ -1,7 +1,6 @@
 """
 `minified_js` is taken from `zerver.templatetags.minified_js.py`
 """
-from __future__ import absolute_import  # Python 2 only
 
 from typing import Text
 

zproject/settings.py

@@ -1,4 +1,3 @@
-from __future__ import absolute_import
 # Django settings for zulip project.
 ########################################################################
 # Here's how settings for the Zulip project work:

zproject/test_settings.py

@@ -1,4 +1,3 @@
-from __future__ import absolute_import
 import os
 # test_settings.py works differently from
 # dev_settings.py/prod_settings.py; it actually is directly referenced