Cleanup ScriptModule bindings (#19138)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/19138
ghimport-source-id: 10f810f5e7551c1cb65fc4799744083bd7ffd1ee
Reviewed By: jamesr66a
Differential Revision: D14886945
Pulled By: zdevito
fbshipit-source-id: a5e5bb08694d03166a7516ec038656c2a02e7896
