[cleanup] Drop references to the old internal_session method
dropped a while ago, no need to talk about it in a docstring nor to fake it.
include *.py
include */*.py
recursive-include cubicweb_%(cubename)s *.py
recursive-include cubicweb_%(cubename)s/data *.gif *.png *.ico *.css *.js
recursive-include cubicweb_%(cubename)s/i18n *.po
recursive-include cubicweb_%(cubename)s/wdoc *
recursive-include test/data bootstrap_cubes *.py
include *.ini
recursive-include debian changelog compat control copyright rules
include cubicweb-%(cubename)s.spec