dlist is no more used since 15b3b3f5

[alkino]

No description provided.

[azure-pipelines]

✔️ a9ba274 -> Azure artifacts URL

[azure-pipelines]

✔️ af6df4f -> Azure artifacts URL

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.26%. Comparing base (2996006) to head (8f82083).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3048      +/-   ##
==========================================
- Coverage   67.27%   67.26%   -0.01%     
==========================================
  Files         571      571              
  Lines      104877   104867      -10     
==========================================
- Hits        70554    70541      -13     
- Misses      34323    34326       +3     

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[1uc]

I'll summarize my understanding:

1. Prior to Py2NRNString we needed to keep certain Python strings alive while the HOC string was alive.
2. The solution was to defer decrementing the counter on those Python strings until later.
3. The dlist was where we put then, while they awaited their decref.
4. The Py2NRNString immediately made a copy, therefore the Python string and HOC string had separate lifetimes.
5. We continued to defer the decref on the Python string; but stopped decref'ing them. Effectively causing the Python strings to leak.

This PR fixes the leak by removing the code to defer decref'ing. @alkino is that a sensible summary of what's happening?

[1uc]

sensible summary of what's happening?

No, they're not leaked. It's just removing dead code.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[azure-pipelines]

✔️ 8f82083 -> Azure artifacts URL

[bbpbuildbot]

Logfiles from GitLab pipeline #228797 (:white_check_mark:) have been uploaded here!

Status and direct links:

• ✅ mac_m1_cmake_build: [cmake, ON, OFF, OFF, address]
• ✅ spack_setup
• ✅ build:nmodl
• ✅ build:neuron:nmodl:intel:legacy
• ✅ build:neuron:nmodl:intel:shared
• ✅ build:neuron:nmodl:nvhpc:acc:legacy
• ✅ build:neuron:nmodl:nvhpc:acc:shared
• ✅ build:neuron:nmodl:nvhpc:omp:legacy
• ✅ build:neuron:nmodl:nvhpc:omp
• ✅ test:neuron:nmodl:intel:legacy
• ✅ test:neuron:nmodl:intel:shared
• ✅ test:neuron:nmodl:nvhpc:acc:legacy
• ✅ test:neuron:nmodl:nvhpc:acc:shared
• ✅ test:neuron:nmodl:nvhpc:omp:legacy
• ✅ test:neuron:nmodl:nvhpc:omp