OP#630 clean up comments

templates/config.alloy.erb

@@ -65,12 +65,12 @@ discovery.relabel "node_exporter" {
 
   rule {
     target_label = "instance"
-    replacement  = constants.hostname   // <-- this is the key
+    replacement  = constants.hostname
   }
 
   rule {
     target_label = "job"
-    replacement  = "integrations/node_exporter"   // or whatever job name you prefer
+    replacement  = "integrations/node_exporter"
   }
 }