fix socket

src/Worker/SocketListener.php

@@ -70,7 +70,6 @@ class SocketListener
     public function tick(): void
     {
         foreach ($this->servers as $id => $sock) {
-            $protocol = get_resource_type($sock) === 'Socket' ? socket_get_option($sock, SOL_SOCKET, SO_TYPE) : -1;
             $this->processServer($id, $sock);
         }
     }