remove dataset_stats from studio client

[mattseddon]

companion to https://github.com/iterative/studio/pull/11286 - details there

[cloudflare-workers-and-pages]

Deploying datachain-documentation with    Cloudflare Pages

Latest commit:	efdc26d
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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.64%. Comparing base (9acca5d) to head (efdc26d).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #876      +/-   ##
==========================================
+ Coverage   87.61%   87.64%   +0.02%     
==========================================
  Files         128      128              
  Lines       11453    11448       -5     
  Branches     1543     1542       -1     
==========================================
- Hits        10035    10034       -1     
+ Misses       1030     1026       -4     
  Partials      388      388              

Flag	Coverage Δ
datachain	87.56% <ø> (+0.02%)	⬆️

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