[yocto] 'screen' MACHINE_FEATURE

[Ash Charles]

Hi,

Based on the yocto manual [1], it looks like "screen" is a valid
MACHINE_FEATURE and, in fact, it looks like some machines actually
call out this feature.  That said, I can't actually see that this
MACHINE_FEATURE is used.  I checked with buildhistory and some
grepping but maybe I missed something?
Should I be keeping this in my machines or is the deprecated?

Thanks for any insight,
--Ash

[1] http://www.yoctoproject.org/docs/1.7.1/mega-manual/mega-manual.html#ref-features-machine