Remove setuptools usage. Since we are using Makefile to launch nosetests, no need to have integration in our setup, and that make tihngs easied for embed python.

setup.py

@@ -1,8 +1,9 @@
 from fnmatch import filter as fnfilter
-from sys import platform, argv, modules
+from sys import platform, argv
 from os.path import join, dirname, realpath, sep, exists
 from os import walk, environ
-from setuptools import setup, Extension
+from distutils.core import setup
+from distutils.extension import Extension
 
 # extract version (simulate doc generation, kivy will be not imported)
 environ['KIVY_DOC_INCLUDE'] = '1'
@@ -98,14 +99,6 @@ if 'sdist' in argv and have_cython:
 # add cython core extension modules if cython is available
 if have_cython:
     cmdclass['build_ext'] = build_ext
-    # this is an hack to make setuptools works with Cython
-    # without this hack, cython is not executed, and we don't have C files at
-    # the end. More information can be found at
-    # http://mail.python.org/pipermail/distutils-sig/2007-September/008204.html
-    # The solution taken is http://pypi.python.org/pypi/setuptools_cython/
-    if 'setuptools.extension' in modules:
-        m = modules['setuptools.extension']
-        m.Extension.__dict__ = m._Extension.__dict__
 else:
     pyx_files = ['%s.c' % x[:-4] for x in pyx_files]
 
@@ -199,8 +192,6 @@ setup(
                 'hardware-accelerated multitouch applications.',
     ext_modules=ext_modules,
     cmdclass=cmdclass,
-    setup_requires=['nose>=0.11'],
-    test_suite='nose.collector',
     packages=[
         'kivy',
         'kivy.core',