fix(scheduler): remove explanatory comment per review feedback

Per archlitchi's review on Project-HAMi#2436, drop the inline comment block above
the snapshot-miss check; the log message and failedNodes reason already
say what's happening.

Signed-off-by: Aditya Raut <araut7798@gmail.com>

Author: adity1raut

pkg/scheduler/scheduler.go

@@ -731,10 +731,6 @@ func (s *Scheduler) getNodesUsage(nodes *[]string, task *corev1.Pod) (*map[strin
 		}
 		usage, ok := overallnodeMap[node.ID]
 		if !ok {
-			// GetNode() succeeded but the node is absent from the overallnodeMap snapshot
-			// (e.g. registered between the ListNodes() snapshot and this lookup, or filtered
-			// out of ListNodes() by a nil Node). Treat it as unavailable instead of caching a
-			// nil *NodeUsage, which would later be dereferenced unconditionally by the scorer.
 			klog.V(5).InfoS("node usage not found in snapshot", "node", nodeID)
 			failedNodes[nodeID] = "node usage unavailable"
 			continue