diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs
index 86cec9f647b7..7a14901b32d9 100644
--- a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs
+++ b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs
@@ -278,13 +278,6 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> {
 
             let is_shadowed = self.infcx.probe(|_| {
                 let impl_substs = self.infcx.fresh_args_for_item(DUMMY_SP, impl_def_id);
-                let impl_trait_ref = tcx.impl_trait_ref(impl_def_id).instantiate(tcx, impl_substs);
-
-                let expected_trait_ref = alias.trait_ref(tcx);
-
-                if !self.infcx.can_eq(param_env, expected_trait_ref, impl_trait_ref) {
-                    return false;
-                }
 
                 let leaf_def = match specialization_graph::assoc_def(tcx, impl_def_id, alias.def_id)
                 {