minor #58374 Remove useless parent method calls in tests (alexandre-daubois)

This PR was merged into the 7.2 branch.

Discussion
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Remove useless parent method calls in tests

| Q             | A
| ------------- | ---
| Branch?       | 7.2
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | -
| License       | MIT

The vast majority of tests don't call these parent methods, because they are no op. There are a few places where they are called, let's remove them?

Commits
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b54596f604 Remove useless parent method calls in tests

Author: fabpot

Tests/Transport/NativeTransportFactoryTest.php

@@ -26,8 +26,6 @@ final class NativeTransportFactoryTest extends TestCase
 
     public static function setUpBeforeClass(): void
     {
-        parent::setUpBeforeClass();
-
         $namespace = str_replace('\\Tests\\', '\\', __NAMESPACE__);
 
         $current = static::class;