docs: public void streamRemoved(int streamId) {
          Http2PriorityNode node = nodesByID.get(streamId);
          if(node == null) {
              return;
          }
          if(!node.hasDependents()) {
              //add to eviction queue
              int toEvict = evictionQueue[evictionQueuePosition];
              evictionQueue[evictionQueuePosition++] = streamId;
              Http2PriorityNode nodeToEvict = nodesByID.get(toEvict);
              //we don't remove the node if it has since got dependents since it was put into the queue
              //as this is the whole reason we maintain the queue in the first place
              if(nodeToEvict != null && !nodeToEvict.hasDependents()) {
                  nodesByID.remove(toEvict);
              }
          }
  
      }