Clean up Arbitrary impls

[codecov[bot]]

Codecov Report

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

Comparison is base (dae6c17) 54.98% compared to head (fde2600) 54.90%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #64 +/- ## ========================================== - Coverage 54.98% 54.90% -0.09% ========================================== Files 30 30 Lines 4461 4457 -4 ========================================== - Hits 2453 2447 -6 - Misses 2008 2010 +2 ``` | [Flag](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.) | Coverage Δ | | |---|---|---| | [ubuntu-latest](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.) | `56.08% <92.15%> (+0.03%)` | :arrow_up: | | [windows-latest](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.) | `54.42% <100.00%> (-0.09%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.#carryforward-flags-in-the-pull-request-comment) to find out more. | [Files](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.) | Coverage Δ | | |---|---|---| | [src/ffi/int.rs](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.#diff-c3JjL2ZmaS9pbnQucnM=) | `100.00% <100.00%> (ø)` | | | [src/ffi/string.rs](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.#diff-c3JjL2ZmaS9zdHJpbmcucnM=) | `100.00% <ø> (ø)` | | | [src/object/attributes.rs](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.#diff-c3JjL29iamVjdC9hdHRyaWJ1dGVzLnJz) | `100.00% <100.00%> (ø)` | | | [src/object/depth.rs](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.#diff-c3JjL29iamVjdC9kZXB0aC5ycw==) | `96.42% <100.00%> (-0.13%)` | :arrow_down: | | [src/path.rs](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.#diff-c3JjL3BhdGgucnM=) | `100.00% <ø> (ø)` | | | [src/lib.rs](https://app.codecov.io/gh/HadrienG2/hwlocality/pull/64?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Hadrien+G.#diff-c3JjL2xpYi5ycw==) | `83.01% <87.50%> (+5.59%)` | :arrow_up: |

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