Remove unused impls from some subdiagnostics.
diff --git a/compiler/rustc_ast_lowering/src/errors.rs b/compiler/rustc_ast_lowering/src/errors.rs
index 8de0719..153737d 100644
--- a/compiler/rustc_ast_lowering/src/errors.rs
+++ b/compiler/rustc_ast_lowering/src/errors.rs
@@ -14,7 +14,7 @@ pub struct GenericTypeWithParentheses {
pub sub: Option<UseAngleBrackets>,
}
-#[derive(Clone, Copy, Subdiagnostic)]
+#[derive(Subdiagnostic)]
#[multipart_suggestion(ast_lowering_use_angle_brackets, applicability = "maybe-incorrect")]
pub struct UseAngleBrackets {
#[suggestion_part(code = "<")]
@@ -72,7 +72,7 @@ pub struct AssocTyParentheses {
pub sub: AssocTyParenthesesSub,
}
-#[derive(Clone, Copy, Subdiagnostic)]
+#[derive(Subdiagnostic)]
pub enum AssocTyParenthesesSub {
#[multipart_suggestion(ast_lowering_remove_parentheses)]
Empty {
diff --git a/compiler/rustc_const_eval/src/errors.rs b/compiler/rustc_const_eval/src/errors.rs
index afabd96..32ec911 100644
--- a/compiler/rustc_const_eval/src/errors.rs
+++ b/compiler/rustc_const_eval/src/errors.rs
@@ -239,7 +239,7 @@ pub(crate) struct NonConstImplNote {
pub span: Span,
}
-#[derive(Subdiagnostic, PartialEq, Eq, Clone)]
+#[derive(Subdiagnostic, Clone)]
#[note(const_eval_frame_note)]
pub struct FrameNote {
#[primary_span]
