cleanup setup.cfg

setup.cfg

@@ -1,33 +1,21 @@
-[bdist_wheel]
-universal = 1
-
 [metadata]
 license_file = LICENSE
 
 [flake8]
 ignore =
   # W503 - line break before binary operator
-  # https://www.python.org/dev/peps/pep-0008/#should-a-line-break-before-or-after-a-binary-operator
   W503,
 exclude =
     __pycache__,
     .git,
     build,
     dist,
-    docs,
     env,
     old,
     venv,
 max-line-length = 128
-exit-zero = True
 show-source = True
 statistic = True
-builtins =
-  basestring,
-  file,
-  raw_input,
-  unicode,
-  xrange,
 import-order-style = pycharm
 application-import-names =
   liveproxy,