Remove normalize_erasing_late_bound_regions and simply .skip_binder() instead

Author: Sa4dUs

compiler/rustc_codegen_llvm/src/intrinsic.rs

@@ -1136,8 +1136,7 @@ fn codegen_autodiff<'ll, 'tcx>(
     let fn_args = instance.args;
     let callee_ty = instance.ty(tcx, bx.typing_env());
 
-    let sig = callee_ty.fn_sig(tcx);
-    let sig = tcx.normalize_erasing_late_bound_regions(bx.typing_env(), sig);
+    let sig = callee_ty.fn_sig(tcx).skip_binder();
 
     let ret_ty = sig.output();
     let llret_ty = bx.layout_of(ret_ty).llvm_type(bx);