Cleanup Storage Settings

Bug: 183078080
Test: make
      make RunSettingsRoboTests ROBOTEST_FILTER=com.android.settings.deviceinfo
      make RunSettingsRoboTests
      ROBOTEST_FILTER=com.android.settings.deviceinfo.storage
      atest com.android.settings.deviceinfo
      atest com.android.settings.deviceinfo.storage
Change-Id: I901f5f7999ea94dafb72a2517a11e2ff1fd51b42
40 files changed