General cleanup

- Remove unused Dockerfiles
- Simplify Makefile
- Use tox.ini to store nose config
- Bump version of voltha-protos and fix test

Change-Id: I8d6a1e8dfafd84bd21f495b0f6b96885f829c208
diff --git a/setup.py b/setup.py
index 293fd2e..02cf55b 100644
--- a/setup.py
+++ b/setup.py
@@ -57,7 +57,7 @@
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
     ],
-    packages=find_packages(exclude=['protos', 'test']),
+    packages=find_packages(exclude=['test']),
     install_requires=[required],
     include_package_data=True,
     dependency_links=["git+https://github.com/ciena/afkak.git#egg=afkak-3.0.0.dev20181106"]