refactor(sysctl): Refactor some controller code

[matthiasbeyer]

Description

Some more code refactoring

Motivation and Context

Not required at all, just found that nice.

How Has This Been Tested?

It hasn't :laughing:

Screenshots / Logs (if applicable)

Types of Changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)
• [ ] Documentation (no code change)
• [x] Refactor (refactoring production code)
• [ ] Other

Checklist:

• [x] My code follows the code style of this project.
• [ ] I have updated the documentation accordingly.
• [x] I have formatted the code with rustfmt.
• [ ] I checked the lints with clippy.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[matthiasbeyer]

A quick bisect told me that the first patch of this series broke this... which I do not understand... do you have some insight?

[orhun]

Yup, I just checked cargo run -- -A and it lists only the deprecated parameters.

[matthiasbeyer]

Should be fixed now, please have another look! :tada:

[codecov-commenter]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

:exclamation: Your organization needs to install the Codecov GitHub app to enable full functionality.

Files	Coverage Δ
systeroid-core/src/sysctl/controller.rs	76.48% <81.25%> (-0.98%)	:arrow_down:

... and 1 file with indirect coverage changes

:loudspeaker: Thoughts on this report? Let us know!.