关闭蓝牙开关后，与后端通信，收到的信号有延时，导致关闭三级页面一会才关闭的现象。现改为直接关闭三级页面不等待后端信号

Log: 修复关闭蓝牙开关，三级菜单会等待一会儿才会关闭
Bug: https://pms.uniontech.com/zentao/bug-view-49560.html
Change-Id: I2199b5386229c5976335d03e26d14141b5923f70
Reviewed-on: http://gerrit.uniontech.com/c/dde-control-center/+/6552
Reviewed-by: <mailman@uniontech.com>
Reviewed-by: wangshaojun <wangshaojun@uniontech.com>
Tested-by: <mailman@uniontech.com>