remove unnecessary file

packages/slackbot-proxy/src/services/RecieveService.ts

@@ -1,16 +0,0 @@
-import { Service } from '@tsed/di';
-import { parseSlashCommand } from '@growi/slack';
-
-@Service()
-export class ReceiveService {
-
-  receiveContentsFromSlack(body:{[key:string]:string}) : string {
-    const parseBody = parseSlashCommand(body);
-    if (parseBody.growiCommandType === 'register') {
-      console.log('register action occured');
-      return 'register action occurd';
-    }
-    return 'return receiveContentsFromSlack';
-  }
-
-}