Clippy-fix explicit auto-deref

Seems like these can be safely fixed. With one, I was particularly
surprised -- `Some(pats) => &**pats,` in body.rs?

```
cargo clippy --fix -- -A clippy::all -D clippy::explicit_auto_deref
```

crates/proc-macro-srv/src/abis/abi_1_58/proc_macro/bridge/client.rs

@@ -286,7 +286,7 @@ impl BridgeState<'_> {
         BRIDGE_STATE.with(|state| {
             state.replace(BridgeState::InUse, |mut state| {
                 // FIXME(#52812) pass `f` directly to `replace` when `RefMutL` is gone
-                f(&mut *state)
+                f(&mut state)
             })
         })
     }

crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/bridge/client.rs

@@ -301,7 +301,7 @@ impl BridgeState<'_> {
         BRIDGE_STATE.with(|state| {
             state.replace(BridgeState::InUse, |mut state| {
                 // FIXME(#52812) pass `f` directly to `replace` when `RefMutL` is gone
-                f(&mut *state)
+                f(&mut state)
             })
         })
     }