Rollup merge of #122038 - Alexendoo:unused-qualifications, r=petrochenkov

Fix linting paths with qself in `unused_qualifications`

Fixes #121999

`resolve_qpath` ends up being called again with `qself` set to `None` to check trait items from fully qualified paths. To avoid this the lint is moved to a place that accounts for this already

https://github.com/rust-lang/rust/blob/96561a8fd134e8f2b205769a4fca03b392d9f484/compiler/rustc_resolve/src/late.rs#L4074-L4088

r? `````@petrochenkov`````

Author: matthiaskrgr