Merge pull request #174 from djsutherland/setup-requires

[MRG] Fix requirements

Author: rflamary

setup.py

@@ -66,9 +66,8 @@
       license='MIT',
       scripts=[],
       data_files=[],
-      requires=["numpy", "scipy", "cython"],
-      setup_requires=["numpy>=1.16", "scipy>=1.0", "cython>=0.23"],
-      install_requires=["numpy>=1.16", "scipy>=1.0", "cython>=0.23"],
+      setup_requires=["numpy>=1.16", "cython>=0.23"],
+      install_requires=["numpy>=1.16", "scipy>=1.0"],
       classifiers=[
           'Development Status :: 5 - Production/Stable',
           'Intended Audience :: Developers',