remove install_requires from setup.py

setup.py reads:

    install_requires=[
        "setuptools",
        ],

which causes,
- Downloading/unpacking setuptools from https://pypi.python.org/packages/source/s/setuptools/setuptools-5.1.tar.gz#md5=c26e47ce8d7b46bd354e68301f410fb8 (from enum==0.4.4->-r requirements.txt (line 45))
- Running setup.py egg_info for package setuptools

and the old one to be uninstalled,

- Found existing installation: setuptools 0.9.8
- Uninstalling setuptools:
- Successfully uninstalled setuptools
- Running setup.py install for setuptools

and this is when things begin to get obscure ..

- running build_ext
- Creating /data/teamcity/.virtualenvs/unit-testing/lib/python2.7/site-packages/phoenix-me.egg-link (link to .)
- Adding phoenix-me 0.33.0 to easy-install.pth file
- error: /data/teamcity/.virtualenvs/unit-testing/lib/python2.7/site-packages/setuptools/script template (dev).py: No such file or directory
- Process exited with code 1