Remove utils.ClientCfg and utils.ClientCfgHash (#8041)

* remove utils.ClientCfg and utils.ClientCfgHash

* remove unused import

app/web_conn.go

@@ -277,7 +277,7 @@ func (webCon *WebConn) IsAuthenticated() bool {
 
 func (webCon *WebConn) SendHello() {
 	msg := model.NewWebSocketEvent(model.WEBSOCKET_EVENT_HELLO, "", "", webCon.UserId, nil)
-	msg.Add("server_version", fmt.Sprintf("%v.%v.%v.%v", model.CurrentVersion, model.BuildNumber, utils.ClientCfgHash, utils.IsLicensed()))
+	msg.Add("server_version", fmt.Sprintf("%v.%v.%v.%v", model.CurrentVersion, model.BuildNumber, webCon.App.ClientConfigHash(), utils.IsLicensed()))
 	webCon.Send <- msg
 }