From 8dc92a360c3f8df35ea9d7df566159b79c8c737f Mon Sep 17 00:00:00 2001
From: Ralf Jung <post@ralfj.de>
Date: Mon, 2 Oct 2023 09:49:45 +0200
Subject: [PATCH] remove another unused Key impl

---
 compiler/rustc_middle/src/query/keys.rs | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/compiler/rustc_middle/src/query/keys.rs b/compiler/rustc_middle/src/query/keys.rs
index 090ee5a68b09e..113763450529c 100644
--- a/compiler/rustc_middle/src/query/keys.rs
+++ b/compiler/rustc_middle/src/query/keys.rs
@@ -12,7 +12,6 @@ use rustc_hir::hir_id::{HirId, OwnerId};
 use rustc_query_system::query::{DefaultCacheSelector, SingleCacheSelector, VecCacheSelector};
 use rustc_span::symbol::{Ident, Symbol};
 use rustc_span::{Span, DUMMY_SP};
-use rustc_target::abi::FieldIdx;
 
 /// Placeholder for `CrateNum`'s "local" counterpart
 #[derive(Copy, Clone, Debug)]
@@ -360,14 +359,6 @@ impl<'tcx> Key for (ty::ParamEnv<'tcx>, ty::TraitRef<'tcx>) {
     }
 }
 
-impl<'tcx> Key for (ty::Const<'tcx>, FieldIdx) {
-    type CacheSelector = DefaultCacheSelector<Self>;
-
-    fn default_span(&self, _: TyCtxt<'_>) -> Span {
-        DUMMY_SP
-    }
-}
-
 impl<'tcx> Key for ty::PolyTraitRef<'tcx> {
     type CacheSelector = DefaultCacheSelector<Self>;