Remove outdated docstring from test_montecarlo.py

[chvogl]

📝 Description

The docstring for test_montecarlo.py is outdated. It only contains information about the old C tests. This PR removes it. Let me know if you think there is information in the "General Test Design Procedure" that I should keep.

Type: : 📝 documentation

📌 Resources

Examples, notebooks, and links to useful references.

🚦 Testing

How did you test these changes?

• Testing pipeline
• Other method (describe)
• My changes can't be tested (explain why)

☑️ Checklist

• I requested two reviewers for this pull request
• I updated the documentation according to my changes
• I built the documentation by applying the build_docs label

Note: If you are not allowed to perform any of these actions, ping (@) a contributor.

[codecov]

Codecov Report

Merging #2382 (cbf64c3) into master (5b36105) will not change coverage.
The diff coverage is n/a.

❗ Current head cbf64c3 differs from pull request most recent head 5dd77b4. Consider uploading reports for the commit 5dd77b4 to get more accurate results

@@           Coverage Diff           @@
##           master    #2382   +/-   ##
=======================================
  Coverage   70.57%   70.57%           
=======================================
  Files         139      139           
  Lines       12875    12875           
=======================================
  Hits         9087     9087           
  Misses       3788     3788           

Files Changed	Coverage Δ
tardis/montecarlo/tests/test_montecarlo.py	30.15% <ø> (ø)

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