Cleaned up duplicate code

src/Http/Middleware/MercureHandler.php

@@ -64,14 +64,6 @@ class MercureHandler
      */
     private function handleMercureClient(ServerRequestInterface $request): ResponseInterface
     {
-        $tok = $request->getAttribute('authorization');
-        if ($tok instanceof JWTToken) {
-            $claims = $tok->claims->getAll();
-            if (isset($claims['mercure']['subscribe'])) {
-                $subscribeClaims = $claims['mercure']['subscribe'];
-                // TODO check topic against subscribeClaims
-            }            
-        }
 
         $responseStream = new ThroughStream();