ITVR - clean up unused household code

[emi-hi]

Describe the task Remove references to household applications

Purpose easier to navigate code base, less code to maintain Acceptance Criteria

• [ ] remove references to spouse and household in code
• [ ] make sure application still works

Additional context

• Add any other context about the task here.
• Or here

[kcabhar]

Hey team! Please add your planning poker estimate with Zenhub @emi-hi @tim738745