revert islogged function check token validation and clean expired tokens

src/user.ts

@@ -32,12 +32,12 @@ export default class User {
     this.devstarHostname = parsedUrl.hostname.replace(/\./g, '_'); //提取hostname，并用下划线替换.
   }
 
-  public async login(token: string, username: string): Promise<string> {
+  public async login(token: string, username: string) {
     const devstarAPIHandler = new DevstarAPIHandler()
 
     try {
       const res = await devstarAPIHandler.verifyToken(token, username)
-      if (res !== 'ok') {
+      if (!res) {
         throw new Error('Token verification failed')
       }