package/python-crc16: allow to build with python3
python3 is officially supported by package, as there is a usage example
at [1]. Simply remove dependency on BR2_PACKAGE_PYTHON.
[1] https://pypi.org/project/crc16/
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit a7fdc5686bb269cc3797d7c550f10f75074f2e71)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>