deps: remove unused rust crate linux-raw-sys

[xtqqczze]

unused since maybe 61ac193

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/tail/follow-name (fails in this run but passes in the 'main' branch)
Congrats! The gnu test tests/dd/stderr is no longer failing!
Congrats! The gnu test tests/tac/tac-2-nonseekable is no longer failing!
Congrats! The gnu test tests/tail/follow-stdin is no longer failing!

[codspeed-hq]

CodSpeed Performance Report

Merging this PR will degrade performance by 3.28%

_{Comparing xtqqczze:deps/linux-raw-sys (fa8de55) with main (2d7a3bf)}

Summary

⚡ 3 improved benchmarks
❌ 1 regressed benchmark
✅ 278 untouched benchmarks
⏩ 38 skipped benchmarks¹

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
⚡	Memory	sort_key_field[500000]	32.8 MB	31.4 MB	+4.65%
⚡	Memory	sort_numeric[500000]	48.7 MB	47.3 MB	+3.07%
❌	Memory	dd_copy_default	124.8 KB	129 KB	-3.28%
⚡	Memory	du_wide_tree[(5000, 500)]	1.2 MB	1.2 MB	+3.43%

Footnotes

1. 38 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[xtqqczze]

See also: #10375

[cakebaker]

Thanks!