wallet_rpc_server: adding missing return on error in set_daemon

src/wallet/wallet_rpc_server.cpp

@@ -4152,6 +4152,7 @@ namespace tools
     {
       er.code = WALLET_RPC_ERROR_CODE_NO_DAEMON_CONNECTION;
       er.message = "SSL is enabled but no user certificate or fingerprints were provided";
+      return false;
     }
 
     if (!m_wallet->set_daemon(req.address, boost::none, req.trusted, std::move(ssl_options)))