Removed versionadded directives of previous versions

Author: javiereguiluz

bundles/configuration.rst

@@ -198,6 +198,7 @@ The ``Configuration`` class to handle the sample configuration looks like::
     }
 
 .. versionadded:: 4.2
+
     Not passing the root node name to ``TreeBuilder`` was deprecated in Symfony 4.2.
 
 .. seealso::

components/asset.rst

@@ -375,9 +375,6 @@ document inside a template::
 Local Files and Other Protocols
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-.. versionadded:: 4.2
-    The support for other protocols was introduced in Symfony 4.2.
-
 In addition to HTTP this component supports other protocols (such as ``file://``
 and ``ftp://``). This allows for example to serve local files in order to
 improve performance::