Rollup merge of #147544 - cjgillot:nodeinit, r=saethlin

Remove StatementKind::Deinit.

It is a remnant from the time we deaggreated MIR.

Now, it is only constructed by the `LargeEnums` MIR pass, which is disabled by default.

Author: dianqk

clippy_utils/src/qualify_min_const_fn.rs

@@ -232,7 +232,7 @@ fn check_statement<'tcx>(
 
         StatementKind::FakeRead(box (_, place)) => check_place(cx, *place, span, body, msrv),
         // just an assignment
-        StatementKind::SetDiscriminant { place, .. } | StatementKind::Deinit(place) => {
+        StatementKind::SetDiscriminant { place, .. } => {
             check_place(cx, **place, span, body, msrv)
         },