Fix awkwardly-worded nature of scheduled too soon error (#33156)

config/locales/en.yml

@@ -1677,7 +1677,7 @@ en:
   scheduled_statuses:
     over_daily_limit: You have exceeded the limit of %{limit} scheduled posts for today
     over_total_limit: You have exceeded the limit of %{limit} scheduled posts
-    too_soon: The scheduled date must be in the future
+    too_soon: date must be in the future
   self_destruct:
     lead_html: Unfortunately, <strong>%{domain}</strong> is permanently closing down. If you had an account there, you will not be able to continue using it, but you can still request a backup of your data.
     title: This server is closing down

spec/services/post_status_service_spec.rb

@@ -70,7 +70,7 @@ RSpec.describe PostStatusService do
           subject.call(account, text: 'Hi future!', scheduled_at: invalid_scheduled_time)
         end.to raise_error(
           ActiveRecord::RecordInvalid,
-          'Validation failed: Scheduled at The scheduled date must be in the future'
+          'Validation failed: Scheduled at date must be in the future'
         )
       end
     end