Fixes coi_pycc tests
Fixes coi_pycc tests

XN and XP cleanup crashes subsequent tests and possibly exchange
management, I removed it in favor of using addCleanup and letting the
exchange management to cleanup resources appropriately in lieu of
explicit cleanup which violates the workflow (and crashes).

ooici/coi-services,ooici/coi-services,ooici/coi-services,ooici/coi-services,ooici/coi-services