def _qt4_on_destroyed(self, control=None):
        self.control = None
Validate the driver-specific Node deployment info.
dataset/ETHPy150Open enthought/pyface/pyface/ui/qt4/action/action_item.py/_Tool._qt4_on_destroyed--crossover with--dataset/ETHPy150Open openstack/ironic/ironic/drivers/modules/agent_base_vendor.py/BaseAgentVendor.validate