Remove some dead code

Author: fancyweb

Command/LintCommand.php

@@ -91,10 +91,6 @@ protected function execute(InputInterface $input, OutputInterface $output): int
         $this->format = $input->getOption('format');
         $flags = $input->getOption('parse-tags');
 
-        if ('github' === $this->format && !class_exists(GithubActionReporter::class)) {
-            throw new \InvalidArgumentException('The "github" format is only available since "symfony/console" >= 5.3.');
-        }
-
         if (null === $this->format) {
             // Autodetect format according to CI environment
             $this->format = class_exists(GithubActionReporter::class) && GithubActionReporter::isGithubActionEnvironment() ? 'github' : 'txt';

Tests/Command/LintCommandTest.php

@@ -13,7 +13,6 @@
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\Console\Application;
-use Symfony\Component\Console\CI\GithubActionReporter;
 use Symfony\Component\Console\Command\Command;
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Console\Tester\CommandCompletionTester;
@@ -68,11 +67,6 @@ public function testLintIncorrectFile()
 
     public function testLintIncorrectFileWithGithubFormat()
     {
-        if (!class_exists(GithubActionReporter::class)) {
-            $this->expectException(\InvalidArgumentException::class);
-            $this->expectExceptionMessage('The "github" format is only available since "symfony/console" >= 5.3.');
-        }
-
         $incorrectContent = <<<YAML
 foo:
 bar
@@ -82,10 +76,6 @@ public function testLintIncorrectFileWithGithubFormat()
 
         $tester->execute(['filename' => $filename, '--format' => 'github'], ['decorated' => false]);
 
-        if (!class_exists(GithubActionReporter::class)) {
-            return;
-        }
-
         self::assertEquals(1, $tester->getStatusCode(), 'Returns 1 in case of error');
         self::assertStringMatchesFormat('%A::error file=%s,line=2,col=0::Unable to parse at line 2 (near "bar")%A', trim($tester->getDisplay()));
     }