def reactivate_workflow_transitions(cr, transition_conditions):
    """
    Reactivate workflow transition previously deactivated by
    deactivate_workflow_transitions.

    :param transition_conditions: a dictionary returned by     deactivate_workflow_transitions

    .. versionadded:: 7.0
    .. deprecated:: 11.0
       Workflows were removed from Odoo as of version 11.0
    """
    for transition_id, condition in transition_conditions.iteritems():
        cr.execute('update wkf_transition set condition = %s where id = %s',
            (condition, transition_id))
