Clean up ORM indexes

[skearnes]

No description provided.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.07%. Comparing base (16cdf28) to head (ea78b4e).
Report is 23 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #755      +/-   ##
==========================================
- Coverage   70.35%   70.07%   -0.29%     
==========================================
  Files          23       23              
  Lines        2351     2369      +18     
  Branches      609      561      -48     
==========================================
+ Hits         1654     1660       +6     
- Misses        586      597      +11     
- Partials      111      112       +1     

Files with missing lines	Coverage Δ
ord_schema/orm/mappers.py	97.04% <100.00%> (ø)
ord_schema/orm/rdkit_mappers.py	93.82% <100.00%> (ø)

... and 2 files with indirect coverage changes