Remove obsolete setup files

setup.cfg

-[bdist_wheel]
-universal=1
-[flake8]
-max-line-length=120
-ignore: E301, E302, E401, E261, E265, E226, F401, W504

setup.py

-#!/usr/bin/env python
-
-import os, glob
-from setuptools import setup, find_packages
-
-setup(
-    name='requests-http-signature',
-    version='0.2.0',
-    url='https://github.com/kislyuk/requests-http-signature',
-    license='Apache Software License',
-    author='Andrey Kislyuk',
-    author_email='kislyuk@gmail.com',
-    description="A Requests auth module for HTTP Signature",
-    long_description=open('README.rst').read(),
-    packages=find_packages(exclude=['test']),
-    include_package_data=True,
-    platforms=['MacOS X', 'Posix'],
-    test_suite='test',
-    classifiers=[
-        'Intended Audience :: Developers',
-        'License :: OSI Approved :: Apache Software License',
-        'Operating System :: MacOS :: MacOS X',
-        'Operating System :: POSIX',
-        'Programming Language :: Python',
-        'Programming Language :: Python :: 2.7',
-        'Programming Language :: Python :: 3.3',
-        'Programming Language :: Python :: 3.4',
-        'Development Status :: 5 - Production/Stable',
-        'Topic :: Software Development :: Libraries :: Python Modules'
-    ],
-    install_requires=[
-        "requests"
-    ],
-    extras_require={
-        "rsa": ["cryptography >= 1.8.2"],
-        "ecdsa": ["cryptography >= 1.8.2"]
-    }
-)