remove span_delayed_bug

Author: TaKO8Ki

compiler/rustc_hir_analysis/src/check/compare_eii.rs

@@ -425,15 +425,11 @@ fn extract_spans_for_error_reporting<'tcx>(
         (sig.decl.inputs.iter().map(|t| t.span).chain(iter::once(sig.decl.output.span())), ident)
     };
 
-    let declaration_args = declaration.as_local().and_then(|def_id| {
+    let declaration_args = declaration.as_local().map(|def_id| {
         if let Some(sig) = get_declaration_sig(tcx, def_id) {
-            Some(sig.decl.inputs.iter().map(|t| t.span).chain(iter::once(sig.decl.output.span())))
+            sig.decl.inputs.iter().map(|t| t.span).chain(iter::once(sig.decl.output.span()))
         } else {
-            tcx.dcx().span_delayed_bug(
-                tcx.def_span(def_id),
-                format!("expected {def_id:?} to be a foreign function"),
-            );
-            None
+            panic!("expected {def_id:?} to be a foreign function");
         }
     });