Auto merge of #122830 - matthiaskrgr:rollup-uk2by3f, r=matthiaskrgr

Rollup of 8 pull requests

Successful merges:

 - #122402 (Make `#[diagnostic::on_unimplemented]` format string parsing more robust)
 - #122644 (pattern analysis: add a custom test harness)
 - #122733 (Strip placeholders from hidden types before remapping generic parameter)
 - #122752 (Interpolated cleanups)
 - #122771 (add some comments to hir::ModuleItems)
 - #122793 (Implement macro-based deref!() syntax for deref patterns)
 - #122810 (Remove `target_override`)
 - #122827 (Remove unnecessary braces from `bug`/`span_bug`)

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

1 files changed, 0 insertions, 7 deletions

diff --git a/compiler/rustc_codegen_ssa/src/traits/backend.rs b/compiler/rustc_codegen_ssa/src/traits/backend.rs
index e6d42c596d2..e8b9490d401 100644
--- a/compiler/rustc_codegen_ssa/src/traits/backend.rs
+++ b/compiler/rustc_codegen_ssa/src/traits/backend.rs
@@ -21,7 +21,6 @@ use rustc_session::{
 };
 use rustc_span::symbol::Symbol;
 use rustc_target::abi::call::FnAbi;
-use rustc_target::spec::Target;
 
 use std::fmt;
 
@@ -70,12 +69,6 @@ pub trait CodegenBackend {
     fn print_passes(&self) {}
     fn print_version(&self) {}
 
-    /// If this plugin provides additional builtin targets, provide the one enabled by the options here.
-    /// Be careful: this is called *before* init() is called.
-    fn target_override(&self, _opts: &config::Options) -> Option<Target> {
-        None
-    }
-
     /// The metadata loader used to load rlib and dylib metadata.
     ///
     /// Alternative codegen backends may want to use different rlib or dylib formats than the