Remove outdated test about repeated parsing

[IndrajeetPatil]

cf. #1161

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (d6fee24) 92.31% compared to head (99528df) 92.16%.

❗ Current head 99528df differs from pull request most recent head dc606ef. Consider uploading reports for the commit dc606ef to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1163      +/-   ##
==========================================
- Coverage   92.31%   92.16%   -0.16%     
==========================================
  Files          46       46              
  Lines        2655     2655              
==========================================
- Hits         2451     2447       -4     
- Misses        204      208       +4     

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