perf_hooks: remove unnecessary assignment when name is undefined

PR-URL: #32910
Reviewed-By: Michaël Zasso <[email protected]>
Reviewed-By: Zeyu Yang <[email protected]>
Reviewed-By: Andrey Pechkurov <[email protected]>
Reviewed-By: Colin Ihrig <[email protected]>
Reviewed-By: Chengzhong Wu <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>
Reviewed-By: James M Snell <[email protected]>

lib/perf_hooks.js

@@ -407,8 +407,8 @@ class Performance {
   }
 
   clearMarks(name) {
-    name = name !== undefined ? `${name}` : name;
     if (name !== undefined) {
+      name = `${name}`;
       this[kIndex][kMarks].delete(name);
       _clearMark(name);
     } else {