The implementations have been imported into SettingsLib. Setting's copy
can now be removed, which this change also does.
Test: Manually check battery status, which uses FooterMixin, looks OK.
make RunSettingsLibRobotTests && make RunSettingsRoboTests
&& make RunSettingsGoogleRoboTests
Change-Id: I6539605fdad80d156ff5ff249e68df4a1c412067
The device management info page should show information about the
current user's policies, not the primary user's.
Bug: 32692748
Test: m RunSettingsRoboTests
Change-Id: I5d8afa7fae1c0f3a4da78b085365882827e6721b