Removed unnecessary imports after code review.

Signed-off-by: Rafael Guterres Jeffman <rjeffman@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>

ipalib/plugable.py

@@ -24,7 +24,6 @@ The classes in this module make heavy use of Python container emulation. If
 you are unfamiliar with this Python feature, see
 http://docs.python.org/ref/sequence-types.html
 """
-from __future__ import unicode_literals
 
 import logging
 import operator

ipaserver/dcerpc.py

@@ -22,7 +22,7 @@
 # Make sure we only run this module at the server where samba4-python
 # package is installed to avoid issues with unavailable modules
 
-from __future__ import absolute_import, unicode_literals
+from __future__ import absolute_import
 
 import logging
 import re

ipaserver/dns_data_management.py

@@ -2,7 +2,7 @@
 # Copyright (C) 2016  FreeIPA Contributors see COPYING for license
 #
 
-from __future__ import absolute_import, unicode_literals
+from __future__ import absolute_import
 
 import logging
 

ipatests/test_xmlrpc/test_external_members.py

@@ -21,8 +21,6 @@ Test adding/removing external members (trusted domain objects) to IPA groups.
 These tests are skipped if trust is not established.
 """
 
-from __future__ import unicode_literals
-
 import unittest
 
 from ipalib import api