Clean skippable tests that are never skipped

Author: fancyweb

Tests/Command/DebugCommandTest.php

@@ -189,10 +189,6 @@ class:%s
      */
     public function testComplete(array $input, array $expectedSuggestions)
     {
-        if (!class_exists(CommandCompletionTester::class)) {
-            $this->markTestSkipped('Test command completion requires symfony/console 5.4+.');
-        }
-
         $formRegistry = new FormRegistry([], new ResolvedFormTypeFactory());
         $command = new DebugCommand($formRegistry);
         $application = new Application();

Tests/FormErrorIteratorTest.php

@@ -26,10 +26,6 @@ class FormErrorIteratorTest extends TestCase
      */
     public function testFindByCodes($code, $violationsCount)
     {
-        if (!class_exists(ConstraintViolation::class)) {
-            $this->markTestSkipped('Validator component required.');
-        }
-
         $formBuilder = new FormBuilder(
             'form',
             null,