[migration] Stop setting session.data['rebuild-infered']
It's no longer read anywhere since fe267b7336f3 "[migration] always
rebuild infered relation"
# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s specific hooks and operations"""