devel/py-nbclassic: Revert ad593a9d4d7957012965264a91f21667488ca1b2
The correct fix is adding py-setuptools as missing RUN_DEPENDS to py-jupyter-packaging.
PR: 270510
Reference: https://pkg-status.freebsd.org/gohan04/data/140amd64-default-foo/2024-06-23_06h42m00s/logs/errors/py311-nbclassic-1.1.0.log