minor symfony#11619 [Messenger]minor: update remove of loggingmiddleware (Simperfit)

This PR was merged into the master branch.

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[Messenger]minor: update remove of loggingmiddleware

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This follows the update to 5.0 by removing the logging middlewere from the docs

Commits
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90ba4de minor: update remove of loggingmiddleware

Author: javiereguiluz

components/messenger.rst

@@ -75,8 +75,7 @@ middleware stack. The component comes with a set of middleware that you can use.
 When using the message bus with Symfony's FrameworkBundle, the following middleware
 are configured for you:
 
-#. :class:`Symfony\\Component\\Messenger\\Middleware\\LoggingMiddleware` (logs the processing of your messages)
-#. :class:`Symfony\\Component\\Messenger\\Middleware\\SendMessageMiddleware` (enables asynchronous processing)
+#. :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))
 
 Example::