Merge abbrev en locales.

Fearlessly bulldoze the previous doc.

config/locales/en-ABBREV.yml

-en-ABBREV:
-  datetime:
-    distance_in_words:
-      x_seconds: '%{count}s'
-      x_minutes: '%{count}m'
-      about_x_hours: '%{count}h'
-      x_hours: '%{count}h'
-      x_days: '%{count}d'
-      x_weeks: '%{count}w'
-      about_x_months: '%{count}mo'
-      x_months: '%{count}mo'
-      x_years: '%{count}y'

config/locales/time.en_abbrev.yml

 en_abbrev:
   datetime:
     distance_in_words:
-      x_minutes:
-        one: "1m"
-        other: "%{count}m"
-      about_x_hours:
-        other: "~%{count}h"
-      x_days:
-        one: "1d"
+      x_seconds: '%{count}s'
+      x_minutes: '%{count}m'
+      about_x_hours: '~%{count}h'
+      x_hours: '%{count}h'
+      x_days: '%{count}d'
+      x_weeks: '%{count}w'
+      about_x_months: '~%{count}mo'
+      x_months: '%{count}mo'
+      x_years: '%{count}y'