Consider deprecating integer_arithmetic in favor of arithmetic_side_effects

[c410-f3r]

Even though both lints can live separated, perhaps it might be worth considering deprecating integer_arithmetic in favor of arithmetic_side_effects.

1. arithmetic_side_effects can detect arithmetic operations of any type, not only integers, which prevents more runtime overflows or panics.
2. integer_arithmetic fires on trivial operations that in fact shouldn't be linted. On the other hand, arithmetic_side_effects is smarter.
   2.1. Adding or Subtracting 0¹: https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=8c37520d26e4e59a85b419efc32c02c8
   2.2. Multiplying 1 or 0¹: https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=5e95f95870e7cb6d6c3df178b98c2bd2
   2.3. CTFE: https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=5144fb63c938b3796e65f91007eae9b0
   2.4. References: https://play.rust-lang.org/?version=nightly&mode=debug&edition=2021&gist=46c03f3b0851c376113f8ea161e92d08
   2.5. You can take a look at other spotted cases in https://github.com/rust-lang/rust-clippy/pulls?q=is%3Apr+author%3Ac410-f3r+is%3Aclosed.

¹: Used to reinforce the arguments. It its known that no_effect and similar exist.

[c410-f3r]

Closing due to the lack of feedback.

[xFrednet]

Closing due to the lack of feedback.

Sorry for not providing feedback earlier. We sadly get too many issues, to review them all. If you want a discussion or feedback, I recommend pinging @rust-lang/clippy, asking on Zulip or even better in this case, adding the I-nominated later to add the issue as a topic in the next meeting. :)

[c410-f3r]

Hey @xFrednet, I really appreciate your feedback and tips. Thank you very much!