Rollup merge of #139667 - 1c3t3a:remove-no-sanitize, r=m-ou-se

cfi: Remove #[no_sanitize(cfi)] for extern weak functions

Previously (rust-lang/rust#115200, rust-lang/rust#138002), we added `#[no_sanitize(cfi)]` to all code paths that call to a weakly linked function.

In rust-lang/rust#138349 we fixed the root cause for this issue, which means we can now remove the corresponding attributes.

r? `@rcvalle`

Author: matthiaskrgr