Remove the 'Factory' time zone by not processing the 'factory' file.

The factory file (and Factory time zone) was meant as a way to say
"not configured" that would give a clear error when running date(1).
For us it would just look like UTC, so it is of no value.

Bug: 2997381
Change-Id: I1a4b85dce97d1d9370b22ba79e8fe5dafff56541
3 files changed