Remove future module #1297

Signed-off-by: Kainaat Singh <kainaatsingh93@gmail.com>

remove unwanted lines

Author: KainaatSingh

tests/aggregate_tests.py

@@ -26,14 +26,6 @@
   'tuf/tests'.  Use --random to run the tests in random order.
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import sys
 import unittest
 

tests/simple_https_server.py

@@ -29,14 +29,6 @@
     http://docs.python.org/library/simplehttpserver.html#module-SimpleHTTPServer
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import sys
 import ssl
 import os

tests/simple_server.py

@@ -25,14 +25,6 @@
     http://docs.python.org/library/simplehttpserver.html#module-SimpleHTTPServer
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import sys
 import random
 import socketserver

tests/slow_retrieval_server.py

@@ -21,14 +21,6 @@
   interval 'DELAY').  The server is used in 'test_slow_retrieval_attack.py'.
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import os
 import sys
 import time

tests/test_arbitrary_package_attack.py

@@ -28,14 +28,6 @@
   There is no difference between 'updates' and 'target' files.
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import os
 import tempfile
 import shutil

tests/test_download.py

@@ -25,14 +25,6 @@
   TODO: Adopt the environment variable management from test_proxy_use.py here.
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import hashlib
 import logging
 import os

tests/test_endless_data_attack.py

@@ -31,14 +31,6 @@
   There is no difference between 'updates' and 'target' files.
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import os
 import tempfile
 import shutil

tests/test_extraneous_dependencies_attack.py

@@ -34,14 +34,6 @@
   There is no difference between 'updates' and 'target' files.
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import os
 import tempfile
 import shutil

tests/test_fetcher.py

@@ -5,9 +5,6 @@
 
 """Unit test for RequestsFetcher.
 """
-# Help with Python 2 compatibility, where the '/' operator performs
-# integer division.
-from __future__ import division
 
 import logging
 import os

tests/test_formats.py

@@ -20,14 +20,6 @@
   Unit test for 'formats.py'
 """
 
-# Help with Python 3 compatibility, where the print statement is a function, an
-# implicit relative import is invalid, and the '/' operator performs true
-# division.  Example:  print 'hello world' raises a 'SyntaxError' exception.
-from __future__ import print_function
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import unicode_literals
-
 import unittest
 import datetime
 import sys