minor #8366 Update upload_file.rst (atailouloute)

This PR was merged into the 3.3 branch.

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Update upload_file.rst

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4edbdc8 Update upload_file.rst

Author: xabbuh

controller/upload_file.rst

@@ -400,8 +400,6 @@ Now, register this class as a Doctrine listener:
             <!-- ... -->
 
             <service id="AppBundle\EventListener\BrochureUploaderListener">
-                <argument type="service" id="app.brochure_uploader"/>
-
                 <tag name="doctrine.event_listener" event="prePersist"/>
                 <tag name="doctrine.event_listener" event="preUpdate"/>
             </service>