cargo remove should clean up removed dependencies from the cache

After installing cargo-edit I can `cargo add crate_name`, great
But now to remove one, `cargo rm` doesn't seem to delete the crate and its dependencies
Like, there's no logging, there's no progress, did it remove all packages, or just unlinked them?

Also, why `cargo add`
But `cargo rm`

Why cut the word? Put both option at least, the convention for rust is using the whole word, I don't understand why this one is an exception.

Start at the cargo rm command entry point and inspect how dependency removal currently behaves and what output it provides. Clarify whether the requested change covers cache cleanup, progress reporting, command naming, or all three; done should include an agreed behavior for each request.

Written by the indexing model from the issue text.