Dialer: Remove libshortcutbadger

* Doesn't work with Launcher3/Trebuchet anyway:
  "MissedCallNotificationReceiver.updateBadgeCount -
   update badge count: 1 success: false"
* Removes a third party lib dependency

Change-Id: I78eb8cdb5db32ed9d714949e25c72a79dd924b02
3 files changed