fix flushBackoffQCompleted: remove defer

'defer' is called in the 'for' loop, remove it

pkg/scheduler/internal/queue/scheduling_queue.go

@@ -428,7 +428,7 @@ func (p *PriorityQueue) flushBackoffQCompleted() {
 		}
 		p.activeQ.Add(rawPodInfo)
 		metrics.SchedulerQueueIncomingPods.WithLabelValues("active", BackoffComplete).Inc()
-		defer p.cond.Broadcast()
+		p.cond.Broadcast()
 	}
 }