Remove some __future__ imports

bypy/windows/wix.py

@@ -2,8 +2,6 @@
 # vim:fileencoding=utf-8
 # License: GPLv3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
 
-from __future__ import (unicode_literals, division, absolute_import,
-                        print_function)
 from itertools import count
 import os
 import shutil

setup/csslint.py

@@ -2,8 +2,6 @@
 # vim:fileencoding=utf-8
 # License: GPL v3 Copyright: 2020, Kovid Goyal <kovid at kovidgoyal.net>
 
-from __future__ import absolute_import, division, print_function, unicode_literals
-
 import os
 import shutil
 import subprocess

src/calibre/customize/builtins.py

@@ -1945,7 +1945,6 @@ if __name__ == '__main__':
     try:
         subprocess.check_call(['python', '-c', textwrap.dedent(
         '''
-        from __future__ import print_function
         import time, sys, init_calibre
         st = time.time()
         import calibre.customize.builtins

src/calibre/utils/ipython.py

@@ -19,7 +19,6 @@ def setup_pyreadline():
     config = '''
 #Bind keys for exit (keys only work on empty lines
 #disable_readline(True)		#Disable pyreadline completely.
-from __future__ import print_function, unicode_literals, absolute_import
 debug_output("off")             #"on" saves log info to./pyreadline_debug_log.txt
                                 #"on_nologfile" only enables print warning messages
 bind_exit_key("Control-d")
@@ -183,7 +182,6 @@ def simple_repl(user_ns={}):
     user_ns['help'] = Helper()
     from code import InteractiveConsole
     console = InteractiveConsole(user_ns)
-    console.runsource('from __future__ import (unicode_literals, division, absolute_import, print_function)')
     console.interact(BANNER + 'Use exit to quit')