Remove unused longterm script from cfg

[morcuended]

Since it is directly defined in the code (see #104)

[codecov]

Codecov Report

Merging #105 (576952a) into main (d817a94) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #105      +/-   ##
==========================================
- Coverage   81.92%   81.85%   -0.07%     
==========================================
  Files          43       43              
  Lines        4448     4448              
==========================================
- Hits         3644     3641       -3     
- Misses        804      807       +3     

Impacted Files	Coverage Δ
osa/scripts/simulate_processing.py	91.20% <0.00%> (-2.40%)	⬇️

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