Remove all old code related to optparse config parsing.

[DanielNoord]

Type of Changes

	Type
✓	🔨 Refactoring
✓	📜 Docs

Description

Bye bye

[codecov]

Codecov Report

Merging #8405 (2679239) into main (1ed1ab0) will increase coverage by 0.03%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8405      +/-   ##
==========================================
+ Coverage   95.59%   95.63%   +0.03%     
==========================================
  Files         177      176       -1     
  Lines       18688    18612      -76     
==========================================
- Hits        17865    17799      -66     
+ Misses        823      813      -10     

Impacted Files	Coverage Δ
pylint/config/find_default_config_files.py	89.47% <ø> (-0.89%)	⬇️
pylint/lint/pylinter.py	96.00% <ø> (+0.68%)	⬆️
pylint/checkers/base_checker.py	95.20% <100.00%> (-0.08%)	⬇️
pylint/config/__init__.py	100.00% <100.00%> (ø)
pylint/config/_pylint_config/generate_command.py	100.00% <100.00%> (ø)
pylint/config/arguments_manager.py	100.00% <100.00%> (+2.10%)	⬆️
pylint/config/arguments_provider.py	100.00% <100.00%> (+5.12%)	⬆️
pylint/config/callback_actions.py	100.00% <100.00%> (ø)
pylint/config/utils.py	100.00% <100.00%> (ø)
pylint/lint/utils.py	96.55% <100.00%> (ø)
... and 3 more

[Pierre-Sassoulas]

What a cleanup ! 🔥

[github-actions]

🤖 According to the primer, this change has no effect on the checked open source code. 🤖🎉

This comment was generated for commit 2679239