message: Remove scipy dependency.
  See
diff: @@ -73,10 +73,6 @@ REQUIRED_PACKAGES = [
  # functools comes with python3, need to install the backport for python2
  'functools32 >= 3.2.3;python_version<"3"',
  'six >= 1.12.0',
  - # scipy < 1.4.1 causes segfaults due to pybind11
  - # Latest scipy pip for py2 is scipy==1.2.2
  - 'scipy == 1.4.1;python_version>="3"',
  - 'scipy == 1.2.2;python_version<"3"',
  ]
  if sys.byteorder == 'little':
  