front: remove the space curves slopes chart

[clarani]

closes #9146

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 37.60%. Comparing base (fd92012) to head (b3255b1).
Report is 29 commits behind head on dev.

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Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #9148      +/-   ##
============================================
+ Coverage     37.16%   37.60%   +0.43%     
  Complexity     2242     2242              
============================================
  Files          1262     1256       -6     
  Lines        115857   115122     -735     
  Branches       3278     3271       -7     
============================================
+ Hits          43055    43287     +232     
+ Misses        70848    69889     -959     
+ Partials       1954     1946       -8     

Flag	Coverage Δ
core	74.78% <ø> (-0.02%)	⬇️
editoast	72.09% <ø> (-0.46%)	⬇️
front	15.58% <100.00%> (+0.38%)	⬆️
gateway	2.22% <ø> (ø)
osrdyne	2.56% <ø> (-0.01%)	⬇️
railjson_generator	87.49% <ø> (ø)
tests	86.46% <ø> (ø)

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[theocrsb]

lgtm and tested

[SharglutDev]

Lgtm and tested, nice to see all this cleaning :) Left a few comments for possible unused things, feel free to resolve them :)

[Yohh]

TrainDetails.tsx seems needing some clean

[Yohh]

Note

we stil use D3js mainly for bisect util functions, we should talk about that and see if we keep the whole lib for that or find another way

[clarani]

I totally agree with you @Yohh. We can create a new ticket for that.

[Yohh]

LGTM