Rollup merge of #105375 - WaffleLapkin:docfix, r=cjgillot

Fix an outdated comment mentioning parameter that doesn't exist anymore

I'm not too familiar with the code in question, but from what I see I think the new comment makes sense.

r? `@cjgillot` (you touched these arguments lately https://github.com/rust-lang/rust/pull/91557/files#diff-ad0c15bbde97a607d4758ec7eaf88248be5d6b8ae084dfc84127f81e3f7a9bb4L1702, https://github.com/rust-lang/rust/pull/104048/files#diff-ad0c15bbde97a607d4758ec7eaf88248be5d6b8ae084dfc84127f81e3f7a9bb4L1682)

diff --cc compiler/rustc_ast_lowering/src/lib.rs
Simple merge