Removed most of absolute_import imports

Should be unneeded with Python 2.7 and up.
Added some unicode_literals along the way.

tests/syndication/feeds.py

@@ -1,4 +1,4 @@
-from __future__ import absolute_import, unicode_literals
+from __future__ import unicode_literals
 
 from django.contrib.syndication import views
 from django.core.exceptions import ObjectDoesNotExist

tests/syndication/tests.py

@@ -1,4 +1,4 @@
-from __future__ import absolute_import, unicode_literals
+from __future__ import unicode_literals
 
 from xml.dom import minidom
 

tests/syndication/urls.py

@@ -1,5 +1,3 @@
-from __future__ import absolute_import
-
 from django.conf.urls import patterns
 
 from . import feeds