From 551829b6adcaf78a92a8c6faabcf1fbe4e71e14b Mon Sep 17 00:00:00 2001
From: Michael Howell <michael@notriddle.com>
Date: Fri, 24 Dec 2021 13:23:03 -0700
Subject: [PATCH] rustdoc: remove unused Hash impl

---
 src/librustdoc/clean/types.rs | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs
index cb4896fbfd23d..fe32b75d668ce 100644
--- a/src/librustdoc/clean/types.rs
+++ b/src/librustdoc/clean/types.rs
@@ -1,6 +1,6 @@
 use std::cell::RefCell;
 use std::default::Default;
-use std::hash::{Hash, Hasher};
+use std::hash::Hash;
 use std::lazy::SyncOnceCell as OnceCell;
 use std::path::PathBuf;
 use std::rc::Rc;
@@ -904,7 +904,7 @@ impl<I: Iterator<Item = ast::NestedMetaItem> + IntoIterator<Item = ast::NestedMe
 /// Included files are kept separate from inline doc comments so that proper line-number
 /// information can be given when a doctest fails. Sugared doc comments and "raw" doc comments are
 /// kept separate because of issue #42760.
-#[derive(Clone, PartialEq, Eq, Debug, Hash)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 crate struct DocFragment {
     crate span: rustc_span::Span,
     /// The module this doc-comment came from.
@@ -1140,15 +1140,6 @@ impl PartialEq for Attributes {
 
 impl Eq for Attributes {}
 
-impl Hash for Attributes {
-    fn hash<H: Hasher>(&self, hasher: &mut H) {
-        self.doc_strings.hash(hasher);
-        for attr in &self.other_attrs {
-            attr.id.hash(hasher);
-        }
-    }
-}
-
 #[derive(Clone, PartialEq, Eq, Debug, Hash)]
 crate enum GenericBound {
     TraitBound(PolyTrait, hir::TraitBoundModifier),