vi /usr/share/gnome-shell/js/ui/panel.js
找到下面的代码，刪除‘a11y’就好了，加粗的为删除的～
const STANDARD_STATUS_AREA_ORDER = ['a11y', 'keyboard', 'volume', 'bluetooth', 'network', 'battery', 'userMenu'];
const STANDARD_STATUS_AREA_SHELL_IMPLEMENTATION = {
'a11y': imports.ui.status.accessibility.ATIndicator,
'volume': imports.ui.status.volume.Indicator,
'battery': imports.ui.status.power.Indicator,
'keyboard': imports.ui.status.keyboard.XKBIndicator,
'userMenu': imports.ui.userMenu.UserMenuButton
};