Revert "Only load app routes if the app has already been loaded"

This reverts commit 50ebea41f6.

lib/private/app.php

@@ -73,16 +73,6 @@ class OC_App {
 		return str_replace(array('\0', '/', '\\', '..'), '', $app);
 	}
 
-	/**
-	 * Check if an app is loaded
-	 *
-	 * @param string $app
-	 * @return bool
-	 */
-	public static function isAppLoaded($app) {
-		return in_array($app, self::$loadedApps, true);
-	}
-
 	/**
 	 * loads all apps
 	 *

lib/private/route/router.php

@@ -150,12 +150,6 @@ class Router implements IRouter {
 		\OC::$server->getEventLogger()->start('loadroutes' . $requestedApp, 'Loading Routes');
 		foreach ($routingFiles as $app => $file) {
 			if (!isset($this->loadedApps[$app])) {
-				if (!\OC_App::isAppLoaded($app)) {
-					// app MUST be loaded before app routes
-					// try again next time loadRoutes() is called
-					$this->loaded = false;
-					continue;
-				}
 				$this->loadedApps[$app] = true;
 				$this->useCollection($app);
 				$this->requireRouteFile($file, $app);