Auto merge of #142770 - tgross35:rollup-w74w39t, r=tgross35

Rollup of 8 pull requests

Successful merges:

 - rust-lang/rust#138291 (rewrite `optimize` attribute to use new attribute parsing infrastructure)
 - rust-lang/rust#140920 (Extract some shared code from codegen backend target feature handling)
 - rust-lang/rust#141990 (Implement send_signal for unix child processes)
 - rust-lang/rust#142668 (vec_deque/fmt/vec tests: remove static mut)
 - rust-lang/rust#142687 (Reduce uses of `hir_crate`.)
 - rust-lang/rust#142699 (Update books)
 - rust-lang/rust#142714 (add comment to `src/bootstrap/build.rs`)
 - rust-lang/rust#142753 (Update library dependencies)

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 1 insertions, 25 deletions

diff --git a/compiler/rustc_codegen_gcc/src/errors.rs b/compiler/rustc_codegen_gcc/src/errors.rs
index 7786be9ae5d..b7e7343460f 100644
--- a/compiler/rustc_codegen_gcc/src/errors.rs
+++ b/compiler/rustc_codegen_gcc/src/errors.rs
@@ -1,31 +1,7 @@
-use rustc_macros::{Diagnostic, Subdiagnostic};
+use rustc_macros::Diagnostic;
 use rustc_span::Span;
 
 #[derive(Diagnostic)]
-#[diag(codegen_gcc_unknown_ctarget_feature_prefix)]
-#[note]
-pub(crate) struct UnknownCTargetFeaturePrefix<'a> {
-    pub feature: &'a str,
-}
-
-#[derive(Diagnostic)]
-#[diag(codegen_gcc_unknown_ctarget_feature)]
-#[note]
-pub(crate) struct UnknownCTargetFeature<'a> {
-    pub feature: &'a str,
-    #[subdiagnostic]
-    pub rust_feature: PossibleFeature<'a>,
-}
-
-#[derive(Subdiagnostic)]
-pub(crate) enum PossibleFeature<'a> {
-    #[help(codegen_gcc_possible_feature)]
-    Some { rust_feature: &'a str },
-    #[help(codegen_gcc_consider_filing_feature_request)]
-    None,
-}
-
-#[derive(Diagnostic)]
 #[diag(codegen_gcc_unwinding_inline_asm)]
 pub(crate) struct UnwindingInlineAsm {
     #[primary_span]