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-rw-r--r--compiler/rustc_ty_utils/src/assoc.rs4
1 files changed, 0 insertions, 4 deletions
diff --git a/compiler/rustc_ty_utils/src/assoc.rs b/compiler/rustc_ty_utils/src/assoc.rs
index 562f5bffba3..bf0bc202852 100644
--- a/compiler/rustc_ty_utils/src/assoc.rs
+++ b/compiler/rustc_ty_utils/src/assoc.rs
@@ -386,10 +386,6 @@ fn associated_type_for_impl_trait_in_impl(
         opt_rpitit_info: Some(ImplTraitInTraitData::Impl { fn_def_id: impl_fn_def_id.to_def_id() }),
     });
 
-    // Copy param_env of the containing function. The synthesized associated type doesn't have
-    // extra predicates to assume.
-    impl_assoc_ty.param_env(tcx.param_env(impl_fn_def_id));
-
     // Copy visility of the containing function.
     impl_assoc_ty.visibility(tcx.visibility(impl_fn_def_id));