Auto merge of rust-lang#16409 - mu001999:master, r=HKalbasi

Remove unused codes

Detected by rust-lang#118257

Author: bors

Diff for: crates/hir-ty/src/diagnostics/match_check.rs

@@ -413,98 +413,3 @@ where
         (self.0)(f)
     }
 }
-
-pub(crate) trait PatternFoldable: Sized {
-    fn fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        self.super_fold_with(folder)
-    }
-
-    fn super_fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self;
-}
-
-pub(crate) trait PatternFolder: Sized {
-    fn fold_pattern(&mut self, pattern: &Pat) -> Pat {
-        pattern.super_fold_with(self)
-    }
-
-    fn fold_pattern_kind(&mut self, kind: &PatKind) -> PatKind {
-        kind.super_fold_with(self)
-    }
-}
-
-impl<T: PatternFoldable> PatternFoldable for Box<T> {
-    fn super_fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        let content: T = (**self).fold_with(folder);
-        Box::new(content)
-    }
-}
-
-impl<T: PatternFoldable> PatternFoldable for Vec<T> {
-    fn super_fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        self.iter().map(|t| t.fold_with(folder)).collect()
-    }
-}
-
-impl<T: PatternFoldable> PatternFoldable for Option<T> {
-    fn super_fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        self.as_ref().map(|t| t.fold_with(folder))
-    }
-}
-
-macro_rules! clone_impls {
-    ($($ty:ty),+) => {
-        $(
-            impl PatternFoldable for $ty {
-                fn super_fold_with<F: PatternFolder>(&self, _: &mut F) -> Self {
-                    Clone::clone(self)
-                }
-            }
-        )+
-    }
-}
-
-clone_impls! { LocalFieldId, Ty, Substitution, EnumVariantId }
-
-impl PatternFoldable for FieldPat {
-    fn super_fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        FieldPat { field: self.field.fold_with(folder), pattern: self.pattern.fold_with(folder) }
-    }
-}
-
-impl PatternFoldable for Pat {
-    fn fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        folder.fold_pattern(self)
-    }
-
-    fn super_fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        Pat { ty: self.ty.fold_with(folder), kind: self.kind.fold_with(folder) }
-    }
-}
-
-impl PatternFoldable for PatKind {
-    fn fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        folder.fold_pattern_kind(self)
-    }
-
-    fn super_fold_with<F: PatternFolder>(&self, folder: &mut F) -> Self {
-        match self {
-            PatKind::Wild => PatKind::Wild,
-            PatKind::Binding { name, subpattern } => {
-                PatKind::Binding { name: name.clone(), subpattern: subpattern.fold_with(folder) }
-            }
-            PatKind::Variant { substs, enum_variant, subpatterns } => PatKind::Variant {
-                substs: substs.fold_with(folder),
-                enum_variant: enum_variant.fold_with(folder),
-                subpatterns: subpatterns.fold_with(folder),
-            },
-            PatKind::Leaf { subpatterns } => {
-                PatKind::Leaf { subpatterns: subpatterns.fold_with(folder) }
-            }
-            PatKind::Deref { subpattern } => {
-                PatKind::Deref { subpattern: subpattern.fold_with(folder) }
-            }
-            &PatKind::LiteralBool { value } => PatKind::LiteralBool { value },
-            PatKind::Or { pats } => PatKind::Or { pats: pats.fold_with(folder) },
-        }
-    }
-}

Diff for: crates/ide-assists/src/handlers/sort_items.rs

@@ -116,11 +116,9 @@ trait AddRewrite {
         new: Vec<T>,
         target: TextRange,
     ) -> Option<()>;
-    fn yeet() {}
 }
 
 impl AddRewrite for Assists {
-    fn yeet() {}
     fn add_rewrite<T: AstNode>(
         &mut self,
         label: &str,