chore: remove unused variable

[wumanho]

No description provided.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 65.68%. Comparing base (ce0f46c) to head (ef0412e).
⚠️ Report is 13 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #140   +/-   ##
=======================================
  Coverage   65.68%   65.68%           
=======================================
  Files           6        6           
  Lines         373      373           
  Branches       89       89           
=======================================
  Hits          245      245           
  Misses        126      126           
  Partials        2        2           

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[sxzz]

Closing this as stale.