Rollup merge of #151932 - frank-king:refactor/pin-coerce-3, r=jackh726

refactor: remove `Adjust::ReborrowPin`

Followed by rust-lang/rust#149130, this PR removes `Adjust::ReborrowPin` and use an `Adjust::Deref(DerefAdjustKind::Pin)` followed by an `Adjust::Borrow(AutoBorrow::Pin)` instead.

Author: JonathanBrouwer