Fix redundant type conversion in LobattoLegendreBasis

[huiyuxie]

Fix patch for #2128.

[github-actions]

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[huiyuxie]

Please make sure that the code is clean when PR/review.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.42%. Comparing base (fdd22a8) to head (5d69731).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2239      +/-   ##
==========================================
- Coverage   96.42%   96.42%   -0.00%     
==========================================
  Files         487      487              
  Lines       39355    39349       -6     
==========================================
- Hits        37945    37939       -6     
  Misses       1410     1410              

Flag	Coverage Δ
unittests	96.42% <100.00%> (-<0.01%)	⬇️

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[sloede]

Seems to make sense to me. Can you please remove the commented code and re-request a review?

[ranocha]

Thanks