refactor: Remove GSF meta cache

[benjaminhuth]

The meta cache is a remainder of an older version and not necessary in the current implementation.

No changes in the tracksummary_gsf.root as expected. Difference in trackstates_gsf.root hashes should come from the pathlength entries, which is accumulated different now.

[github-actions]

📊: Physics performance monitoring for 6a5e50f

Full contents

physmon summary

• ✅ CKF truth_smeared
• ✅ IVF truth_smeared
• ✅ AMVF truth_smeared
• ✅ Track Summary CKF truth_smeared
• ✅ Seeding truth_estimated
• ✅ CKF truth_estimated
• ✅ IVF truth_estimated
• ✅ AMVF truth_estimated
• ✅ Track Summary CKF truth_estimated
• ✅ Seeding seeded
• ✅ CKF seeded
• ✅ IVF seeded
• ✅ AMVF seeded
• ✅ AMVF (+grid seeder) seeded
• ✅ Track Summary CKF seeded
• ✅ Seeding orthogonal
• ✅ CKF orthogonal
• ✅ IVF orthogonal
• ✅ AMVF orthogonal
• ✅ Track Summary CKF orthogonal
• ✅ Ambisolver seeded
• ✅ Ambisolver orthogonal
• ✅ Seeding ttbar
• ✅ CKF ttbar
• ✅ Ambisolver
• ✅ AMVF ttbar
• ✅ AMVF (+grid seeder) ttbar
• ✅ Truth tracking (GSF)
• ✅ Truth tracking
• ✅ Particles inital fatras
• ✅ Particles final fatras
• ✅ Particles inital geant4
• ✅ Particles final geant4

[codecov]

Codecov Report

Merging #2448 (6a5e50f) into main (8071832) will increase coverage by 0.00%.
The diff coverage is 22.22%.

@@           Coverage Diff           @@
##             main    #2448   +/-   ##
=======================================
  Coverage   49.70%   49.71%           
=======================================
  Files         461      461           
  Lines       25989    25981    -8     
  Branches    11934    11929    -5     
=======================================
- Hits        12919    12916    -3     
  Misses       4602     4602           
+ Partials     8468     8463    -5     

Files Changed	Coverage Δ
Core/include/Acts/TrackFitting/detail/GsfActor.hpp	45.51% <22.22%> (+0.20%)	⬆️

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