Fix bug => can delete user

src/Application/Sonata/UserBundle/Admin/UserAdmin.php

@@ -20,6 +20,7 @@ use Sonata\AdminBundle\Datagrid\DatagridMapper;
 use Sonata\AdminBundle\Datagrid\ListMapper;
 use Sonata\AdminBundle\Form\FormMapper;
 use Sonata\AdminBundle\Form\Type\ModelType;
+use Sonata\AdminBundle\Route\RouteCollection;
 use Sonata\AdminBundle\Show\ShowMapper;
 use Sonata\CoreBundle\Form\Type\DatePickerType;
 use Sonata\UserBundle\Admin\Model\UserAdmin as BaseUserAdmin;
@@ -39,6 +40,16 @@ class UserAdmin extends BaseUserAdmin
         $this->setTemplate('edit', '@SonataAdmin/base_edit.html.twig');
     }
 
+    protected function configureRoutes(RouteCollection $collection)
+    {
+        if ($this->isChild()) {
+            $collection->remove('delete');
+            return;
+        }
+
+        // This is the route configuration as a parent
+        $collection->remove('delete');
+    }
     /**
      * {@inheritdoc}
      */