chore: make lint happy

Author: fumiama

plugin/aichat/main.go

@@ -47,10 +47,6 @@ var (
 
 func init() {
 	en.OnMessage(chat.EnsureConfig, func(ctx *zero.Ctx) bool {
-		gid := ctx.Event.GroupID
-		if gid == 0 {
-			gid = -ctx.Event.UserID
-		}
 		stor, ok := ctx.State[zero.StateKeyPrefixKeep+"aichatcfg_stor__"].(chat.Storage)
 		if !ok {
 			logrus.Warnln("ERROR: cannot get stor")