From d8544ce2484553f6397d8986b582181a2e761360 Mon Sep 17 00:00:00 2001
From: ljedrz <ljedrz@gmail.com>
Date: Tue, 11 Feb 2020 13:34:42 +0100
Subject: [PATCH] remove some unused objects

---
 src/librustc/infer/region_constraints/mod.rs | 2 --
 src/librustc_driver/lib.rs                   | 4 ----
 2 files changed, 6 deletions(-)

diff --git a/src/librustc/infer/region_constraints/mod.rs b/src/librustc/infer/region_constraints/mod.rs
index 2c580e2e349..8379a73bb9e 100644
--- a/src/librustc/infer/region_constraints/mod.rs
+++ b/src/librustc/infer/region_constraints/mod.rs
@@ -339,8 +339,6 @@ pub fn both() -> Self {
     }
 }
 
-pub struct ConstraintInfo {}
-
 impl<'tcx> RegionConstraintCollector<'tcx> {
     pub fn new() -> Self {
         Self::default()
diff --git a/src/librustc_driver/lib.rs b/src/librustc_driver/lib.rs
index 019ff431bcb..0f1e9fe1424 100644
--- a/src/librustc_driver/lib.rs
+++ b/src/librustc_driver/lib.rs
@@ -123,10 +123,6 @@ fn after_analysis<'tcx>(
     }
 }
 
-pub struct DefaultCallbacks;
-
-impl Callbacks for DefaultCallbacks {}
-
 #[derive(Default)]
 pub struct TimePassesCallbacks {
     time_passes: bool,