Removing unneeded from __future__ import statements.

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

ebook_converter/utils/mreplace.py

@@ -1,9 +1,4 @@
 # multiple replace from dictionnary : http://code.activestate.com/recipes/81330/
-from __future__ import unicode_literals
-__license__   = 'GPL v3'
-__copyright__ = '2010, sengian <sengian1 @ gmail.com>'
-__docformat__ = 'restructuredtext en'
-
 import re
 try:
     from collections import UserDict
@@ -11,6 +6,11 @@ except ImportError:
     from UserDict import UserDict
 
 
+__license__   = 'GPL v3'
+__copyright__ = '2010, sengian <sengian1 @ gmail.com>'
+__docformat__ = 'restructuredtext en'
+
+
 class MReplace(UserDict):
 
     def __init__(self, data=None, case_sensitive=True):