chardet package is not required anymore

Requirements.txt

@@ -1,4 +1,3 @@
 ply
 Jinja2==2.7.3
-chardet==2.2.1
 unidecode>=0.04.16

patacrep/encoding.py

@@ -1,7 +1,6 @@
 """Dealing with encoding problems."""
 
 import codecs
-import chardet
 import logging
 import contextlib
 

setup.py

@@ -18,7 +18,7 @@ setup(
     packages=find_packages(exclude=["test*"]),
     license="GPLv2 or any later version",
     install_requires=[
-        "unidecode", "jinja2", "chardet", "ply",
+        "unidecode", "jinja2", "ply",
         ],
     setup_requires=["hgtools"],
     package_data={'patacrep': [