Settings: removed "Status bar visible" expanded desktop setting for devices without navbar

On devices without navigation bar, expanded desktop is only useful
for hiding the status bar when the apps don't hide them.
"Status bar visible" setting is a no-op.

Change-Id: I16a31ec6e10c7ed11600e3b1a1d9b631f31af55e

Conflicts:
	res/values/arrays.xml