chore(toolbar-demo): remove unused demo-path node

Remove non-functional demo-path node that was leftover from development.
This node displayed 'examples/vanilla/toolbar-demo' but had no onClick
handler and served no purpose in the demo.

Keeps the functional 'home' node for navigation.

Author: josephfusco

examples/vanilla/toolbar-demo/example-app/src/main.js

@@ -23,8 +23,6 @@ toolbar.register('home', 'Home', () => {
   window.location.href = '/';
 });
 
-toolbar.register('demo-path', 'examples/vanilla/toolbar-demo');
-
 /**
  * State Management
  */