chore: remove unused dependencies

[nyurik]

Try to remove all unused dependencies from various crates

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/misc/tee (passes in this run but fails in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skip an intermittent issue tests/tail/inotify-dir-recreate (fails in this run but passes in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/misc/tee (passes in this run but fails in the 'main' branch)

[sylvestre]

i am confused. Seems some duplicate on #8058 ?

[nyurik]

@sylvestre no, this WIP contains 8058, but it also removes a lot of unneeded dependencies - but lets only merge this after 8058 lands

[cakebaker]

Fyi, you are adding some very old stuff, like clap 2.x.

[nyurik]

@cakebaker not sure where you saw this

[cakebaker]

@nyurik in Cargo.lock

[nyurik]

ah, yes - well, that dependency is a dev dependency by a crate which was not part of the workspace -- all these changes are in #8058. Having it in a workspace would raise awareness of that crate, and will allow us to update all of its dependencies - rather than uu_factor_benches accidentally being forgotten and not reviewed.

❯ cargo tree --workspace -i clap@2
clap v2.34.0
└── criterion v0.3.6
    [dev-dependencies]
    └── uu_factor_benches v0.0.0 (/home/nyurik/dev/rust/coreutils/tests/benches/factor)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/misc/stdbuf (passes in this run but fails in the 'main' branch)

[sylvestre]

needs rebasing now :)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/misc/tee (passes in this run but fails in the 'main' branch)

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/misc/stdbuf (passes in this run but fails in the 'main' branch)
Skipping an intermittent issue tests/timeout/timeout (passes in this run but fails in the 'main' branch)

[nyurik]

ok, this seemed to have finally passed all tests

[cakebaker]

Nice, thanks!

[xtqqczze]

@nyurik FYI I used cargo-shear in #10404 to find and remove unused Rust dependencies (cargo shear --fix).

[nyurik]

thanks! I usually use cargo-udeps -- both have recently been updated, and udeps has had many more downloads, but it seems shear has a bit more functionality