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

This reverts commit f387517

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

Change-Id: If383a01dbd5de92d3e1d3ea2d55de15f7ccf9340

Author: enh-google

core/res/res/values-fa/donottranslate-cldr.xml

@@ -61,21 +61,7 @@
     <string name="day_of_week_long_friday">جمعه</string>
     <string name="day_of_week_long_saturday">شنبه</string>
 
-    <string name="day_of_week_medium_sunday">یکشنبه</string>
-    <string name="day_of_week_medium_monday">دوشنبه</string>
-    <string name="day_of_week_medium_tuesday">سه‌شنبه</string>
-    <string name="day_of_week_medium_wednesday">چهارشنبه</string>
-    <string name="day_of_week_medium_thursday">پنجشنبه</string>
-    <string name="day_of_week_medium_friday">جمعه</string>
-    <string name="day_of_week_medium_saturday">شنبه</string>
 
-    <string name="day_of_week_short_sunday">۱ش</string>
-    <string name="day_of_week_short_monday">۲ش</string>
-    <string name="day_of_week_short_tuesday">۳ش</string>
-    <string name="day_of_week_short_wednesday">۴ش</string>
-    <string name="day_of_week_short_thursday">۵ش</string>
-    <string name="day_of_week_short_friday">ج</string>
-    <string name="day_of_week_short_saturday">ش</string>
 
     <string name="day_of_week_shortest_sunday">ی</string>
     <string name="day_of_week_shortest_monday">د</string>