From a72b739bf0b21d714ed7072fd9c7e807cd549872 Mon Sep 17 00:00:00 2001
From: LeSeulArtichaut <leseulartichaut@gmail.com>
Date: Mon, 14 Dec 2020 23:33:47 +0100
Subject: [PATCH] Remove unused `TyEncoder::tcx` required method

---
 compiler/rustc_metadata/src/rmeta/encoder.rs        | 4 ----
 compiler/rustc_middle/src/ty/codec.rs               | 1 -
 compiler/rustc_middle/src/ty/query/on_disk_cache.rs | 3 ---
 3 files changed, 8 deletions(-)

diff --git a/compiler/rustc_metadata/src/rmeta/encoder.rs b/compiler/rustc_metadata/src/rmeta/encoder.rs
index 46dd0df65e0..63aa4a23a3a 100644
--- a/compiler/rustc_metadata/src/rmeta/encoder.rs
+++ b/compiler/rustc_metadata/src/rmeta/encoder.rs
@@ -319,10 +319,6 @@ fn position(&self) -> usize {
         self.opaque.position()
     }
 
-    fn tcx(&self) -> TyCtxt<'tcx> {
-        self.tcx
-    }
-
     fn type_shorthands(&mut self) -> &mut FxHashMap<Ty<'tcx>, usize> {
         &mut self.type_shorthands
     }
diff --git a/compiler/rustc_middle/src/ty/codec.rs b/compiler/rustc_middle/src/ty/codec.rs
index b2fc3710cd6..1983af17dd0 100644
--- a/compiler/rustc_middle/src/ty/codec.rs
+++ b/compiler/rustc_middle/src/ty/codec.rs
@@ -69,7 +69,6 @@ fn encoder_position(&self) -> usize {
 pub trait TyEncoder<'tcx>: Encoder {
     const CLEAR_CROSS_CRATE: bool;
 
-    fn tcx(&self) -> TyCtxt<'tcx>;
     fn position(&self) -> usize;
     fn type_shorthands(&mut self) -> &mut FxHashMap<Ty<'tcx>, usize>;
     fn predicate_shorthands(&mut self) -> &mut FxHashMap<ty::Predicate<'tcx>, usize>;
diff --git a/compiler/rustc_middle/src/ty/query/on_disk_cache.rs b/compiler/rustc_middle/src/ty/query/on_disk_cache.rs
index 3eed94b1ffb..e006dfeb663 100644
--- a/compiler/rustc_middle/src/ty/query/on_disk_cache.rs
+++ b/compiler/rustc_middle/src/ty/query/on_disk_cache.rs
@@ -1044,9 +1044,6 @@ impl<'a, 'tcx, E> TyEncoder<'tcx> for CacheEncoder<'a, 'tcx, E>
 {
     const CLEAR_CROSS_CRATE: bool = false;
 
-    fn tcx(&self) -> TyCtxt<'tcx> {
-        self.tcx
-    }
     fn position(&self) -> usize {
         self.encoder.encoder_position()
     }