From be7b20e16d4ff074a5a875e2603034b763e6b0e9 Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Mon, 16 Feb 2015 12:50:42 -0500
Subject: [PATCH] Stop advertisting the `old_impl_check` feature. We can't
 ENTIRELY remove it yet, but we don't have to add new uses.

---
 src/librustc_typeck/collect.rs | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/src/librustc_typeck/collect.rs b/src/librustc_typeck/collect.rs
index 8a1945c16a6a..4ec208db93d9 100644
--- a/src/librustc_typeck/collect.rs
+++ b/src/librustc_typeck/collect.rs
@@ -1903,10 +1903,6 @@ fn enforce_impl_ty_params_are_constrained<'tcx>(tcx: &ty::ctxt<'tcx>,
                     "the type parameter `{}` is not constrained by the \
                              impl trait, self type, or predicates",
                             param_ty.user_string(tcx));
-                tcx.sess.span_help(
-                    ty_param.span,
-                    &format!("you can temporarily opt out of this rule by placing \
-                              the `#[old_impl_check]` attribute on the impl"));
             }
         }
     }