Fix particle patches flush api #1626
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Maybe the old logic made sense at some point, I don't recognize any sense in it now. Specifically, it now leads to trouble in span-based write access, so remove it.
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Accidentally deleted as part of openPMD#1626
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Accidentally deleted as part of #1626
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I don't understand our current particle patches flushing logic and it has led to surprising situations in the past often enough. For some reason, we initialize "numParticles" and "numParticlesOffset" (but not "offset" and "extent"???) upon creation of
ParticleSpecies, but then flush the patches only if there are 3 or more records in the patches (since with numParticles and numParticlesOffset there are 2 already).....Since #1594, we have all regular
storeChunk()API calls inPatchRecordComponent, including the Span API which breaks under this logic, since it requires flushing the structure to the backend immediately internally and cannot handle being skipped by this item count.Additionally, as a further follow-up to #1594 this erases special patch handling from
openpmd-pipesince we can now just use the regular API calls.