Remove unnecessary TemporalSysTaskQueueValue export

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: rkannan82

common/metrics/task_queues.go

@@ -14,8 +14,6 @@ const (
 
 	// NormalPartitionTagValue is the partition tag value for normal (non-sticky) partitions.
 	NormalPartitionTagValue = normal
-	// TemporalSysTaskQueueValue is the task queue tag value for server-internal task queues.
-	TemporalSysTaskQueueValue = temporalSys
 )
 
 // GetPerTaskQueueFamilyScope returns "namespace" and "taskqueue" tags. "taskqueue" will be "__omitted__" if

service/matching/matching_engine_test.go

@@ -5246,7 +5246,7 @@ func TestLoggerAndMetricsForPartition_InternalTaskQueue(t *testing.T) {
 		{
 			name:          "internal task queue gets __temporal_sys__ taskqueue tag",
 			tqName:        "/temporal-sys/worker-commands/ns/key",
-			expectTQValue: metrics.TemporalSysTaskQueueValue,
+			expectTQValue: "__temporal_sys__",
 		},
 	}