How do I get rid of the OneNote icon from Android notification area?
When the OneNote badge is running, it adds a notification to the notification tray so that you can launch the OneNote badge directly from the notification tray without leaving the current application. If you wish to disable the notification, you can turn it off.
1. Open OneNote and click the overflow menu
3. In Settings, clear the check box next to Add OneNote to Notification tray.