When Service Manager no longer references a QoS configuration, it must be removed from the service definition.
Figure 28 shows the references for QoS configurations.
Figure 28: QoS Configuration Dependency Chain

Service Manager automatically removes QoS profiles and parameter instances. After removing the QoS profile and parameter instances, Service Manager automatically removes the following QoS configurations in the following order:
Service Manager does not automatically remove the following QoS configurations: