Remove duplicate Powerplant.set_dispatch_plan()

[RobbeSneyders]

Pull Request

Related Issue

Closes #493

Description

As detailed in the issue, the dispatch correction should not happen for every market.

The dispatch correction code is copied from Powerplant.execute_dispatch(). What remains after removing this is equivalent to BaseUnit.set_dispatch_plan(), so the whole method can be removed.

Changes Proposed

Remove duplicate Powerplant.set_dispatch_plan() method.

Testing

See minimal reproducible example in issue.

Checklist

Please check all applicable items:

• Code changes are sufficiently documented (docstrings, inline comments, doc folder updates)
• New unit tests added for new features or bug fixes
• Existing tests pass with the changes
• Reinforcement learning examples are operational (for DRL-related changes)
• Code tested with both local and Docker databases
• Code follows project style guidelines and best practices
• Changes are backwards compatible, or deprecation notices added
• New dependencies added to pyproject.toml
• A note for the release notes doc/release_notes.rst of the upcoming release is included
• Consent to release this PR's code under the GNU Affero General Public License v3.0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.40%. Comparing base (caa46f7) to head (9d8a8d2).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #494      +/-   ##
==========================================
- Coverage   76.48%   76.40%   -0.08%     
==========================================
  Files          49       49              
  Lines        6319     6295      -24     
==========================================
- Hits         4833     4810      -23     
+ Misses       1486     1485       -1     

Flag	Coverage Δ
pytest	76.40% <ø> (-0.08%)	⬇️

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