remove `InferCtxt::clear_caches`

1 files changed, 0 insertions, 3 deletions

diff --git a/compiler/rustc_trait_selection/src/traits/auto_trait.rs b/compiler/rustc_trait_selection/src/traits/auto_trait.rs
index 73e94da165f..c450d104e5c 100644
--- a/compiler/rustc_trait_selection/src/traits/auto_trait.rs
+++ b/compiler/rustc_trait_selection/src/traits/auto_trait.rs
@@ -152,7 +152,6 @@ impl<'tcx> AutoTraitFinder<'tcx> {
              with {:?}",
             trait_ref, full_env
         );
-        infcx.clear_caches();
 
         // At this point, we already have all of the bounds we need. FulfillmentContext is used
         // to store all of the necessary region/lifetime bounds in the InferContext, as well as
@@ -255,8 +254,6 @@ impl<'tcx> AutoTraitFinder<'tcx> {
         let dummy_cause = ObligationCause::dummy();
 
         while let Some(pred) = predicates.pop_front() {
-            infcx.clear_caches();
-
             if !already_visited.insert(pred) {
                 continue;
             }