Revert "Avoid creating import notices for vaccination records"

This reverts commit 357cd2e.

Author: thomasleese

app/models/vaccination_record.rb

@@ -309,11 +309,7 @@ def recalculate_next_dose_delay_triage_date
   end
 
   def should_generate_important_notice?
-    if id_previously_changed? # new_record? is not available in after_save
-      !notify_parents # important notices are only generated if this is false
-    else
-      notify_parents_previously_changed?
-    end
+    notify_parents_previously_changed?
   end
 
   def generate_important_notice_if_needed