Remove unused DomainError in _components.py

[jiananf2]

Thermosteam recently removed DomainError from thermosteam/exceptions.py.

[codecov[bot]]

Codecov Report

Merging #88 (3b5cfb6) into main (ecafe08) will decrease coverage by 0.00%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #88      +/-   ##
==========================================
- Coverage   73.45%   73.45%   -0.01%     
==========================================
  Files          84       84              
  Lines       14495    14494       -1     
  Branches     1584     1584              
==========================================
- Hits        10647    10646       -1     
  Misses       3412     3412              
  Partials      436      436              

Flag	Coverage Δ
unittests	73.45% <ø> (-0.01%)	:arrow_down:

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Impacted Files	Coverage Δ
qsdsan/_components.py	79.87% <ø> (-0.07%)	:arrow_down:

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[yalinli2]

Cool! Thanks @jiananf2 for sending the PR!

Just a note that there is a qsdsan branch for both biosteam and thermosteam, I update those branches periodically after making sure that updates in biosteam/thermsteam are compatible with qsdsan. But helping me to maintain qsdsan by sending PRs like this is much appreciated!