Remove some versionadded directives

Author: javiereguiluz

event_dispatcher.rst

@@ -234,11 +234,6 @@ can also be applied to methods directly::
     Note that the attribute doesn't require its ``event`` parameter to be set
     if the method already type-hints the expected event.
 
-.. versionadded:: 7.4
-
-    Support for union types in the ``$event`` argument of methods using the
-    ``#[AsEventListener]`` attribute was introduced in Symfony 7.4.
-
 .. _events-subscriber:
 
 Creating an Event Subscriber

security/voters.rst

@@ -214,10 +214,6 @@ would look like this::
 
         $vote->extraData['key'] = 'value';  // values can be of any type
 
-    .. versionadded:: 7.4
-
-        The ``$extraData`` property was introduced in Symfony 7.4.
-
 That's it! The voter is done! Next, :ref:`configure it <declaring-the-voter-as-a-service>`.
 
 To recap, here's what's expected from the two abstract methods:
@@ -568,10 +564,6 @@ Then, access that value when counting votes to make a decision::
         }
     }
 
-.. versionadded:: 7.4
-
-    The feature to store arbitrary data inside votes was introduced in Symfony 7.4.
-
 Custom Access Decision Manager
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~