[migration] Stop setting session.data['rebuild-infered']
It's no longer read anywhere since fe267b7336f3 "[migration] always
rebuild infered relation"
option_group_changed('port', 'main', 'web')
option_group_changed('query-log-file', 'main', 'web')
option_group_changed('profile', 'main', 'web')
option_group_changed('max-post-length', 'main', 'web')