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/char_styles.py

@@ -1,14 +1,11 @@
-#!/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 OrderedDict
 from ebook_converter.ebooks.docx.block_styles import (  # noqa
     inherit, simple_color, LINE_STYLES, simple_float, binary_property, read_shd)
 
+
+__license__ = 'GPL v3'
+__copyright__ = '2013, Kovid Goyal <kovid at kovidgoyal.net>'
+
 # Read from XML {{{