core, editoast: remove schematic

[Khoyo]

Fixes #6789.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 70.83333% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 29.39%. Comparing base (afc1c50) to head (d5dc5ad).
Report is 16 commits behind head on dev.

Files	Patch %	Lines
editoast/src/views/infra/lines.rs	25.00%	3 Missing ⚠️
front/src/common/Map/Search/MapSearchLine.tsx	0.00%	2 Missing ⚠️
front/src/reducers/editor/thunkActions.ts	0.00%	1 Missing ⚠️
...r/railjson_generator/schema/infra/make_geo_data.py	0.00%	1 Missing ⚠️

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Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #7356      +/-   ##
============================================
+ Coverage     29.36%   29.39%   +0.02%     
  Complexity     2012     2012              
============================================
  Files          1177     1182       +5     
  Lines        145975   146032      +57     
  Branches       2871     2872       +1     
============================================
+ Hits          42867    42920      +53     
- Misses       101423   101427       +4     
  Partials       1685     1685              

Flag	Coverage Δ
core	75.13% <ø> (+<0.01%)	⬆️
editoast	72.38% <83.33%> (+0.04%)	⬆️
front	9.78% <25.00%> (-0.01%)	⬇️
gateway	2.41% <ø> (ø)
railjson_generator	87.49% <50.00%> (ø)
tests	84.23% <ø> (-0.06%)	⬇️

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[clarani]

Almost good, I found 2 more occurrences of sch or schematic:

• in injectGeometry (trackEdition/utils.ts)
• in loadDataModel (editor/thunkActions.ts)

[eckter]

LGTM for core and tests

[clarani]

LGTM ✅