Save a compiler warning

Enclave/storage.cpp

@@ -498,7 +498,7 @@ void storage_received(MsgBuffer &storage_buf)
     pthread_mutex_unlock(&storage_buf.mutex);
 
     if (g_teems_config.private_routing) {
-        bool ret = generate_all_tokens();
+        generate_all_tokens();
     }
 
     processMsgs();