minor symfony#57974 [Serializer] Remove useless calls to func_get_arg() (alexandre-daubois)

This PR was merged into the 7.1 branch.

Discussion
----------

[Serializer] Remove useless calls to `func_get_arg()`

| Q             | A
| ------------- | ---
| Branch?       | 7.1
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | -
| License       | MIT

It's seems this has been forgotten during an upmerge?

Commits
-------

caf1d87 [Serializer] Remove useless calls to `func_get_arg()`

Author: chalasr

src/Symfony/Component/Serializer/NameConverter/MetadataAwareNameConverter.php

@@ -43,10 +43,6 @@ public function __construct(
 
     public function normalize(string $propertyName, ?string $class = null, ?string $format = null, array $context = []): string
     {
-        $class = 1 < \func_num_args() ? func_get_arg(1) : null;
-        $format = 2 < \func_num_args() ? func_get_arg(2) : null;
-        $context = 3 < \func_num_args() ? func_get_arg(3) : [];
-
         if (null === $class) {
             return $this->normalizeFallback($propertyName, $class, $format, $context);
         }
@@ -60,10 +56,6 @@ public function normalize(string $propertyName, ?string $class = null, ?string $
 
     public function denormalize(string $propertyName, ?string $class = null, ?string $format = null, array $context = []): string
     {
-        $class = 1 < \func_num_args() ? func_get_arg(1) : null;
-        $format = 2 < \func_num_args() ? func_get_arg(2) : null;
-        $context = 3 < \func_num_args() ? func_get_arg(3) : [];
-
         if (null === $class) {
             return $this->denormalizeFallback($propertyName, $class, $format, $context);
         }