remove server.log setting item

hydro/service/server.ts

@@ -743,8 +743,8 @@ export function Connection(
 
 // TODO use postInit?
 export async function start() {
-    const [disableLog, port] = await system.getMany(['server.log', 'server.port']);
-    if (!disableLog) {
+    const port = await system.get('server.port');
+    if (!argv.debug) {
         app.use(morgan(':method :url :status :res[content-length] - :response-time ms', {
             skip: (req, res) => res.hasHeader('nolog'),
         }));