Merge remote-tracking branch 'simon/pep-517-modifications' into tweak_setup

setup.py

@@ -77,6 +77,6 @@ setup(name=pkgname,
       packages=[],
       python_requires=">=3.6",
       ext_modules=extensions,
-      install_requires=['numpy>=1.17.0', 'pybind11>=2.5.0'],
+      install_requires=['numpy>=1.17.0'],
       license="GPLv2",
       )