remove examples

Author: Sarah-eit

reference/twig_reference.rst

@@ -141,23 +141,6 @@ asset_version
 ``packageName`` *(optional)*
     **type**: ``string`` | ``null`` **default**: ``null``
 
-.. code-block:: yaml
-
-    # config/packages/framework.yaml
-    framework:
-        # ...
-        assets:
-            packages:
-                foo_package:
-                    base_path: /avatars
-                    version: 'v2.0'
-
-.. code-block:: twig
-
-    {# the image lives at "public/avatars/" #}
-    {{ asset_version(path = 'avatar.png', packageName = 'foo_package') }}
-    {# output: v2.0 #}
-
 Returns the current version of the package, more information in
 :ref:`templates-link-to-assets`.