message: Remove typing packages from test requirements
  The requirement is already part of the install_requires so this is
  redundant. (It should only be required for python_version < 3.5 in any
  case.)
diff: @@ -301,8 +301,6 @@ setup_requires.append('pytest-runner')
  tests_require.append('pytest')
  tests_require.append('nbval')
  tests_require.append('tabulate')
  -tests_require.append('typing')
  -tests_require.append('typing-extensions')
  if sys.version_info[0] == 3:
  # Mypy doesn't work with Python 2
  