Removing BinaryOpIC::Clear. This method relied on some less-than-obvious hack...

src/ia32/codegen-ia32.cc

Index: src/ia32/codegen-ia32.cc
===================================================================
--- src/ia32/codegen-ia32.cc	(revision 4359)
+++ src/ia32/codegen-ia32.cc	(working copy)
@@ -9518,13 +9518,6 @@
     default:
       UNREACHABLE();
   }
-
-  // Generate an unreachable reference to the DEFAULT stub so that it can be
-  // found at the end of this stub when clearing ICs at GC.
-  if (runtime_operands_type_ != BinaryOpIC::DEFAULT) {
-    GenericBinaryOpStub uninit(MinorKey(), BinaryOpIC::DEFAULT);
-    __ TailCallStub(&uninit);
-  }
 }