Cleanup

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/0.7@2351 b32b6428-25c9-4566-ad07-03861ab6144f

libs/lib/xaal/lib/messages.py

@@ -20,9 +20,6 @@
 #  along with xAAL. If not, see <http://www.gnu.org/licenses/>.
 #
 
-from __future__ import print_function
-
-
 from . import tools
 from . import config
 from .uuids import UUID
@@ -32,11 +29,8 @@ from .exceptions import MessageError,MessageParserError
 import cbor2 as cbor
 import datetime
 import pysodium
-import base64
 import struct
 import sys
-import codecs
-import copy
 
 import logging
 logger = logging.getLogger(__name__)