[maintenance] Remove unnecessary base class in onedal.linear_model.LogisticRegression

[icfaust]

Description

Continuing to cut things down, this abstraction is also unnecessary and does not match other implementations.

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Checklist:

Completeness and readability

• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation to reflect the changes or created a separate PR with updates and provided its number in the description, if necessary.
• Git commit message contains an appropriate signed-off-by string (see CONTRIBUTING.md for details).
• I have resolved any merge conflicts that might occur with the base branch.

Testing

• I have run it locally and tested the changes extensively.
• All CI jobs are green or I have provided justification why they aren't.
• I have extended testing suite if new functionality was introduced in this PR.

Performance

• I have measured performance for affected algorithms using scikit-learn_bench and provided at least a summary table with measured data, if performance change is expected.
• I have provided justification why performance and/or quality metrics have changed or why changes are not expected.
• I have extended the benchmarking suite and provided a corresponding scikit-learn_bench PR if new measurable functionality was introduced in this PR.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
azure	76.80% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
onedal/linear_model/logistic_regression.py	28.35% <100.00%> (-2.63%)	⬇️

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[icfaust]

/intelci: run

[ethanglaser]

Should * and/or **kwargs still be included in the init?

[david-cortes-intel]

@icfaust Title say onedal.cluster.LogisticRegression. Please fix as it will go into the commit name.

[icfaust]

@david-cortes-intel good catch. Was replicating a bit of that KMeans PR. Will change.