Remove an unused dependency (#10747)
## Summary
Continuation of #10475, I improved [`cargo
shear`](https://github.com/Boshen/cargo-shear) even more.
We can put this in CI once I test it a bit more, given that [ignoring
false
positives](https://github.com/Boshen/cargo-shear?tab=readme-ov-file#ignore-false-positives)
has been implemented.
## Test Plan
`cargo check --all-features --all-targets`
