(mongodb >=1.10.0)
MongoDB\Driver\Manager::removeSubscriber — Unregisters a monitoring event subscriber with this Manager
$subscriber): voidUnregisters a monitoring event subscriber with this Manager.
注意: If
subscriberis not already registered with this Manager, this function is a no-op.
subscriber (MongoDB\Driver\Monitoring\Subscriber)A monitoring event subscriber to unregister with this Manager.
値を返しません。