minor cleanup of selector_spreading priority function

pkg/scheduler/algorithm/priorities/selector_spreading.go

@@ -97,16 +97,12 @@ func (s *SelectorSpread) CalculateSpreadPriorityMap(pod *v1.Pod, meta interface{
 			glog.V(4).Infof("skipping pending-deleted pod: %s/%s", nodePod.Namespace, nodePod.Name)
 			continue
 		}
-		matches := false
 		for _, selector := range selectors {
 			if selector.Matches(labels.Set(nodePod.ObjectMeta.Labels)) {
-				matches = true
+				count++
 				break
 			}
 		}
-		if matches {
-			count++
-		}
 	}
 	return schedulerapi.HostPriority{
 		Host:  node.Name,