App manager is not needed anymore

Signed-off-by: Joas Schilling <coding@schilljs.com>

core/Command/App/CheckCode.php

@@ -126,8 +126,7 @@ class CheckCode extends Command implements CompletionAwareInterface  {
 		}
 
 		if(!$input->getOption('skip-validate-info')) {
-			// Can not inject because of circular dependency
-			$infoChecker = new InfoChecker(\OC::$server->getAppManager());
+			$infoChecker = new InfoChecker();
 			$infoChecker->listen('InfoChecker', 'parseError', function($error) use ($output) {
 				$output->writeln("<error>Invalid appinfo.xml file found: $error</error>");
 			});

tests/lib/App/CodeChecker/InfoCheckerTest.php

@@ -44,7 +44,7 @@ class InfoCheckerTest extends TestCase {
 
 	protected function setUp() {
 		parent::setUp();
-		$this->infoChecker = new InfoChecker(\OC::$server->getAppManager());
+		$this->infoChecker = new InfoChecker();
 	}
 
 	public function appInfoData() {