Removing unneeded from __future__ import statements.

Since we are on Python 3.6 and up, we don't need those anymore.

ebook_converter/tinycss/media3.py

@@ -1,15 +1,12 @@
-#!/usr/bin/env python2
-# vim:fileencoding=utf-8
-from __future__ import absolute_import, division, print_function, unicode_literals
-
-__license__ = 'GPL v3'
-__copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
-
 from ebook_converter.tinycss.css21 import CSS21Parser
 from ebook_converter.tinycss.parsing import remove_whitespace, split_on_comma, ParseError
 from ebook_converter.polyglot.builtins import error_message
 
 
+__license__ = 'GPL v3'
+__copyright__ = '2014, Kovid Goyal <kovid at kovidgoyal.net>'
+
+
 class MediaQuery(object):
 
     __slots__ = 'media_type', 'expressions', 'negated'