Recursive locking when sending remove queue event

objects.(*Queue).IsManaged { sq.RLock() } <<<<<
objects.(*Queue).IsManaged { func (sq *Queue) IsManaged() bool { }
objects.(*queueEvents).sendRemoveQueueEvent { } }
objects.(*Queue).RemoveQueue { sq.queueEvents.sendRemoveQueueEvent() }
scheduler.(*partitionManager).cleanQueues { // all OK update the queue hierarchy and partition }
scheduler.(*partitionManager).cleanQueues { if children := queue.GetCopyOfChildren(); len(children) != 0 { }
scheduler.(*partitionManager).cleanRoot { manager.cleanQueues(manager.pc.root) }