chore: remove deprecated sitemaps

[britneywwc]

Done

[List of work items including drive-bys]

QA

• Open the DEMO
• Alternatively, check out this feature branch
• Run the site using the command ./run serve
• View the site locally in your web browser at: http://0.0.0.0:8002/
• Run through the following QA steps
• [List additional steps to QA the new features or prove the bug has been resolved]

Issue / Card

Fixes WD-36456

Screenshots

[if relevant, include a screenshot]

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.14%. Comparing base (7affd70) to head (61411f1).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2502      +/-   ##
==========================================
+ Coverage   78.96%   79.14%   +0.18%     
==========================================
  Files          16       16              
  Lines        1930     1923       -7     
==========================================
- Hits         1524     1522       -2     
+ Misses        406      401       -5     

Flag	Coverage Δ
python	79.14% <ø> (+0.18%)	⬆️

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