reverted emit

lib/network/modules/LayoutEngine.js

@@ -56,6 +56,7 @@ class LayoutEngine {
           }
         }
 
+        this.body.emitter.emit('_resetHierarchicalLayout');
         // because the hierarchical system needs it's own physics and smooth curve settings, we adapt the other options if needed.
         return this.adaptAllOptions(allOptions);
       }