minor #21595 [Serializer] Named serializer normalizers are no longer added to default (HypeMC)

This PR was merged into the 7.3 branch.

Discussion
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[Serializer] Named serializer normalizers are no longer added to default

It is no longer necessary to set `autoconfigure` to `false` since symfony/symfony#61526.

Commits
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4fb1a4f [Serializer] Named serializer normalizers are no longer added to defualt

Author: javiereguiluz

serializer.rst

@@ -1717,8 +1717,6 @@ or :ref:`serializer.encoder <reference-dic-tags-serializer-encoder>` tags:
             # ...
 
             Symfony\Component\Serializer\Normalizer\CustomNormalizer:
-                # prevent this normalizer from being automatically added to the default serializer
-                autoconfigure: false
                 tags:
                     # add this normalizer only to a specific named serializer
                     - serializer.normalizer: { serializer: 'api_client1' }
@@ -1739,11 +1737,7 @@ or :ref:`serializer.encoder <reference-dic-tags-serializer-encoder>` tags:
             <services>
                 <!-- ... -->
 
-                <!-- prevent this normalizer from being automatically added to the default serializer -->
-                <service
-                    id="Symfony\Component\Serializer\Normalizer\CustomNormalizer"
-                    autoconfigure="false"
-                >
+                <service id="Symfony\Component\Serializer\Normalizer\CustomNormalizer">
                     <!-- add this normalizer only to a specific named serializer -->
                     <tag name="serializer.normalizer" serializer="api_client1"/>
 
@@ -1768,9 +1762,6 @@ or :ref:`serializer.encoder <reference-dic-tags-serializer-encoder>` tags:
             // ...
 
             $services->set(CustomNormalizer::class)
-                // prevent this normalizer from being automatically added to the default serializer
-                ->autoconfigure(false)
-
                 // add this normalizer only to a specific named serializer
                 ->tag('serializer.normalizer', ['serializer' => 'api_client1'])
                 // add this normalizer to several named serializers