Revert "fix layer use_raw"

[Intron7]

Reverts #3150

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.52%. Comparing base (284c987) to head (be6de17).
Report is 44 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3154      +/-   ##
==========================================
- Coverage   76.52%   76.52%   -0.01%     
==========================================
  Files         109      109              
  Lines       12482    12480       -2     
==========================================
- Hits         9552     9550       -2     
  Misses       2930     2930              

Files with missing lines	Coverage Δ
src/scanpy/_utils/__init__.py	74.78% <100.00%> (-0.11%)	⬇️
src/scanpy/tools/_score_genes.py	85.10% <100.00%> (ø)