some libvirt testcases in "virsh.undefine" run failed #1916
Description
the failed testcases are "virsh.undefine.normal_test.vm_shut_off.remove_storage.wipe_data" and "virsh.undefine.normal_test.vm_shut_off.remove_storage.no_wipe_date"
When running the two testcases,the results show error infomation
"AttributeError: 'module' object has no attribute 'get_all_vol_paths'"