Remove nose stuff.

Author: shyuep

setup.cfg

@@ -10,6 +10,10 @@ upload-dir = docs/_build/html
 upload_docs = upload_docs --upload-dir=docs/_build/html
 release = register sdist upload
 
-[nosetests]
-with-coverage=1
-cover-erase=1
+[pycodestyle]
+count = True
+ignore=E121,E123,E126,E133,E226,E241,E242,E704,W503,W504,W505,E741,W605
+max-line-length = 120
+statistics = True
+#exclude=test_*,pymatgen/__init__.py,docs_rst/*.py
+