主从网关属性，防挤下线账号删除

wei

2021-09-26 dd3fecc3a8b92b377febfcf92d32ec22a07724f6

 HDL-ON_iOS/Scan.cs

@@ -35,7 +35,6 @@
                var bOn = false;
                mZXingOverlayView.OnCancel += () =>
                {

                    scanner?.Cancel();
                };