Remove unused config option include_package_data

This was added a while back (at AI2) when - for a brief amount of time -
the idea as to ship some translate test data with the package. This idea
was rejected and now the configuration option isn't needed anymore.

setup.py

@@ -51,7 +51,6 @@
     extras_require=extras_requires,
     license="GPLv3 license",
     long_description=readme,
-    include_package_data=True,
     name="pyFV3",
     packages=find_namespace_packages(include=["pyFV3", "pyFV3.*"]),
     setup_requires=[],