Also make the following changes for the master textproc/py-sphinx port:
- Remove post-build introduced when port was updated to version 1.2 in
r336515, but is no longer required after version 1.2.1 [1].
- Include upstream patch which fixes the bundling of grammar files [2]
[1] https://github.com/sphinx-doc/sphinx/blob/1.2.1/CHANGES#L51-L53
[2] b03b7e543f
PR: 217475
PR: 217447
PR: 219833
Submitted by: dbaio
Approved by: kmoore (maintainer timeout)