Removing unneeded from __future__ import statements.

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

ebook_converter/ebooks/docx/toc.py

@@ -1,10 +1,3 @@
-#!/usr/bin/env python2
-# vim:fileencoding=utf-8
-from __future__ import absolute_import, division, print_function, unicode_literals
-
-__license__ = 'GPL v3'
-__copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
-
 from collections import namedtuple
 from itertools import count
 
@@ -15,6 +8,10 @@ from ebook_converter.ebooks.oeb.polish.toc import elem_to_toc_text
 from ebook_converter.polyglot.builtins import iteritems, range
 
 
+__license__ = 'GPL v3'
+__copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
+
+
 def from_headings(body, log, namespace, num_levels=3):
     ' Create a TOC from headings in the document '
     tocroot = TOC()