Remove tox.ini, move warcio to test_requires

setup.py

@@ -40,9 +40,7 @@ deps = [
     'warctools',
     'urlcanon>=0.1.dev16',
     'doublethink>=0.2.0.dev81',
-    'PySocks',
-    'warcio',
-    'requests'
+    'PySocks'
 ]
 try:
     import concurrent.futures
@@ -60,7 +58,7 @@ setuptools.setup(
         license='GPL',
         packages=['warcprox'],
         install_requires=deps,
-        tests_require=['requests>=2.0.1', 'pytest'],  # >=2.0.1 for https://github.com/kennethreitz/requests/pull/1636
+        tests_require=['requests>=2.0.1', 'pytest', 'warcio'],  # >=2.0.1 for https://github.com/kennethreitz/requests/pull/1636
         cmdclass = {'test': PyTest},
         test_suite='warcprox.tests',
         entry_points={

tox.ini

@@ -1,9 +0,0 @@
-[tox]
-envlist=py27,py34,py35
-[testenv]
-deps=
-  pytest
-  pytest-xdist
-  requests
-  mock
-commands=py.test -n 4