--- a/devtools/client/framework/toolbox.js
+++ b/devtools/client/framework/toolbox.js
@@ -1342,20 +1342,16 @@ Toolbox.prototype = {
 
     if (this.target.activeTab) {
       this.target.activeTab.reconfigure({
         "serviceWorkersTestingEnabled": serviceWorkersTestingEnabled
       });
     }
   },
 
- /**
-  * Return all toolbox buttons (command buttons, plus any others that were
-  * added manually).
-
   /**
    * Update the visibility of the buttons.
    */
   updateToolboxButtonsVisibility() {
     this.toolbarButtons.forEach(button => {
       button.isVisible = this._commandIsVisible(button);
     });
     this.component.setToolboxButtons(this.toolbarButtons);