is_mbp is always empty

[dimkr]

@rizalmart Maybe that's not the only bug introduced?

Whoa, it's been this way since 66b42e6 @wdlkmpx

If this entire thing is broken since at least 2018 (= never worked) and nobody complains, maybe it's a better idea to just remove it? Fixing something broken for years can introduce new issues with today's kernels, and maybe it's not needed anymore. EDIT: see #3447.

[mavrothal]

Suppose to be empty unless puppy is running on a MacBookPro retina.
Did you try it on a macbookpro?

[dimkr]

Suppose to be empty unless puppy is running on a MacBookPro retina. Did you try it on a macbookpro?

But it's always empty, even on one of these Macs.

-q means:

       -q, --quiet, --silent
              Quiet; do not write anything to standard output.

So if [ "$is_mbp" ] ; then is always false, on any hardware.

See #3447 (comment).