Clean up stale API models and tests

[aaronchongth]

What's new

• Remove and fix stale tests and API models related to https://github.com/open-rmf/rmf-web/pull/1067/files#diff-be667c412c648c40b21215cc928b03577c54a63e9d7088f3af97fc464ec42bcc

Self-checks

• I'm familiar with and follow this Typescript guideline
• I added unit-tests for new components
• I tried testing edge cases
• I tested the behavior of the components that interact with the backend, with an e2e test

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.39%. Comparing base (a3cf2d4) to head (a5b3504).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1069      +/-   ##
==========================================
+ Coverage   70.02%   79.39%   +9.37%     
==========================================
  Files         288      144     -144     
  Lines       14173     3063   -11110     
  Branches     1135        0    -1135     
==========================================
- Hits         9924     2432    -7492     
+ Misses       4225      631    -3594     
+ Partials       24        0      -24     

Flag	Coverage Δ
api-server	79.39% <ø> (ø)
rmf-dashboard-framework	?

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