Remove device ownership text in quick settings

* On an org-owned device with a managed profile,
  quick settings has a tappable security footer
  that shows privacy disclosures.
* The footer should be untappable if there
  is no policy applied by the admin that
  requires a disclosure (e.g. network logging).
* The device ownership text will no longer be
  shown for org-owned devices.

Manual testing steps
* Set up org-owned device with managed profile.
* Verify QS footer is visible but untappable.
* Enable network logging.
* Verify QS footer is visible and tappable.
* Verify device ownership text is no longer shown.
* Verify behaviour is unchanged for device owner
  and profile owner.

Bug: 186196610
Test: Manual testing
      atest QSSecurityFooterTest
Change-Id: I0df6dc69dc249544d596375f7cd364d8a4080230