Removed the deprecation message

Author: javiereguiluz

components/messenger.rst

@@ -78,11 +78,6 @@ are configured for you:
 #. :class:`Symfony\\Component\\Messenger\\Middleware\\SendMessageMiddleware` (enables asynchronous processing, logs the processing of your messages if you pass a logger)
 #. :class:`Symfony\\Component\\Messenger\\Middleware\\HandleMessageMiddleware` (calls the registered handler(s))
 
-.. deprecated:: 4.3
-
-    The ``LoggingMiddleware`` is deprecated since Symfony 4.3 and will be
-    removed in 5.0. Pass a logger to ``SendMessageMiddleware`` instead.
-
 Example::
 
     use App\Message\MyMessage;