delete isSetupSlackBot

src/server/service/slackbot.js

@@ -19,7 +19,6 @@ class SlackBotService extends S2sMessageHandlable {
     this.client = null;
     this.searchService = null;
 
-    this.isSetupSlackBot = false;
     this.isConnectedToSlack = false;
 
     this.lastLoadedAt = null;
@@ -28,14 +27,12 @@ class SlackBotService extends S2sMessageHandlable {
   }
 
   async initialize() {
-    this.isSetupSlackBot = false;
     this.isConnectedToSlack = false;
     const token = this.crowi.configManager.getConfig('crowi', 'slackbot:token');
 
     if (token != null) {
       this.client = new WebClient(token, { logLevel: LogLevel.DEBUG });
       logger.debug('SlackBot: setup is done');
-      this.isSetupSlackBot = true;
       await this.sendAuthTest();
     }