python-future-src: Clean single-source support for Python 3 and 2 (source)

    2019-11-21 21:54           0 python-future-0.18.2-1.src/
    2019-11-21 21:54      829220 python-future-0.18.2-1.src/future-0.18.2.tar.gz
    2019-11-21 21:54         523 python-future-0.18.2-1.src/python-future.cygport