Remove exnref and br_on_exn (#3505)

This removes `exnref` type and `br_on_exn` instruction.

1 files changed, 0 insertions, 4 deletions

diff --git a/src/passes/SimplifyLocals.cpp b/src/passes/SimplifyLocals.cpp
index 9f164ae92..0649b39c4 100644
--- a/src/passes/SimplifyLocals.cpp
+++ b/src/passes/SimplifyLocals.cpp
@@ -146,10 +146,6 @@ struct SimplifyLocals
         self->unoptimizableBlocks.insert(target);
       }
       // TODO: we could use this info to stop gathering data on these blocks
-    } else if (auto* br = curr->dynCast<BrOnExn>()) {
-      // We cannot optimize the block this targets to have a return value, as
-      // the br_on_exn doesn't support a change to the block's type
-      self->unoptimizableBlocks.insert(br->name);
     }
     self->sinkables.clear();
   }