Fix lint

Author: ace-n

appengine/flexible/websockets/index.php

@@ -19,7 +19,6 @@
 
 use Silex\Application;
 use Silex\Provider\TwigServiceProvider;
-use Silex\Provider\RoutingServiceProvider;
 
 // create the Silex application
 $app = new Application();

appengine/flexible/websockets/test/system_test.php

@@ -50,7 +50,7 @@ public function testIndex()
                 return $endPromise;
             })
             ->otherwise(function ($e) {
-                echo "Error: " . $e->getMessage() ."\n";
+                echo "Error: " . $e->getMessage() . "\n";
                 throw $e;
             });