Revert "Add day_of_week_medium_* and day_of_week_short_* for Persian [fa]"

This reverts commit f3875177254bb116028f8200c88d0b7a8ff9ab1c

This change conflicts with the intended cherry-pick of https://googleplex-android-review.googlesource.com/214542

Change-Id: If383a01dbd5de92d3e1d3ea2d55de15f7ccf9340
1 file changed