Remove deprecated code - part 2

[mahalakshme]

• Remove account
• Remove operating_individual_scope from users table
• Remove from and to in ChecklistItemStatus, also the usages in checklist_item_reference table
• Remove hideTotalWhenProgramEnabled - since I think with realm upgrade this is not needed anymore.
• "date of birth verified" field mostly set to false in the database? Should we remove this field?
  select i.date_of_birth_verified, st.type, count(*)
  from individual i
  inner join subject_type st on i.subject_type_id = st.id
  group by i.date_of_birth_verified, st.type;

Analysis:

• Remove LocationHierarchy - seems to be used by Location concept type