remove docstring from DataModel.__pydantic__init_subclass__

[skshetry]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.72%. Comparing base (c44c3da) to head (073b99b).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #123   +/-   ##
=======================================
  Coverage   85.72%   85.72%           
=======================================
  Files          93       93           
  Lines        9493     9493           
  Branches     1897     1897           
=======================================
  Hits         8138     8138           
  Misses       1023     1023           
  Partials      332      332           

Flag	Coverage Δ
datachain	85.66% <ø> (ø)

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