clippy: fix TryFrom/TryInto warnings

[hackaugusto]

Describe your changes

The 2021 prelude includes TryFrom and TryInto [1]. And recently the nigtlhy channel started linting for this duplicated imports and emitting warnings. This removes the redundant imports.

1: https://doc.rust-lang.org/core/prelude/rust_2021/index.html

---

Here is an example warning:

warning: the item `TryInto` is imported redundantly
   --> src/hash/rescue/rpo/mod.rs:7:12
    |
7   | use core::{convert::TryInto, ops::Range};
    |            ^^^^^^^^^^^^^^^^
    |
   ::: /Users/hack/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/src/rust/library/std/src/prelude/mod.rs:129:13
    |
129 |     pub use core::prelude::rust_2021::*;
    |             ------------------------ the item `TryInto` is already defined here

Checklist before requesting a review

• Repo forked and branch created from next according to naming convention.
• Commit messages and codestyle follow conventions.
• Relevant issues are linked in the PR description.
• Tests added for new functionality.
• Documentation/comments updated according to changes.

[sonarcloud]

Quality Gate passed

Issues
0 New issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud