cleanup, use setuptools

setup.py

@@ -23,15 +23,10 @@
 from shutil import rmtree, copy
 import glob 
 import platform
-from setuptools import find_packages, setup, Command
-from numpy.distutils.command.build_ext import build_ext
-from numpy.distutils.core import setup, Extension
-
-import multiprocessing as mp
-from distutils.core import run_setup
-from setuptools import find_packages
-from numpy.distutils.command.build_ext import build_ext
-from numpy.distutils.core import setup, Extension
+from setuptools import find_packages, setup, Command, Extension
+from setuptools.command.build_ext import build_ext
+from setuptools.command.install import install as _install
+
 from io import open
 
 # Package meta-data.
@@ -58,7 +53,6 @@
 
 # For the CMake Extensions
 this_directory = os.path.abspath(os.path.dirname(__file__))
-ncpus = mp.cpu_count()
 class CMakeExtension(Extension):
 
     def __init__(self, name, sourcedir='', **kwa):