Remove empty pytest raises match condition by jim22k · Pull Request #565 · python-graphblas/python-graphblas

@@            Coverage Diff             @@
##             main     #565      +/-   ##
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- Coverage   99.13%   98.53%   -0.61%     
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  Files          93       98       +5     
  Lines       21855    22470     +615     
  Branches     4130     2730    -1400     
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+ Hits        21667    22140     +473     
- Misses        121      237     +116     
- Partials       67       93      +26