Merged r18805 into trunk branch.

src/x64/code-stubs-x64.cc

Index: src/x64/code-stubs-x64.cc
diff --git a/src/x64/code-stubs-x64.cc b/src/x64/code-stubs-x64.cc
index 23b03eaeef5495a760554bfea0bfb9791a285b77..6159d6f70d70984768eade06557a663561edf1a9 100644
--- a/src/x64/code-stubs-x64.cc
+++ b/src/x64/code-stubs-x64.cc
@@ -418,20 +418,6 @@ void CallDescriptors::InitializeForIsolate(Isolate* isolate) {
     descriptor->register_params_ = registers;
     descriptor->param_representations_ = representations;
   }
-  {
-    CallInterfaceDescriptor* descriptor =
-        isolate->call_descriptor(Isolate::CallHandler);
-    static Register registers[] = { rsi,  // context
-                                    rdx,  // receiver
-    };
-    static Representation representations[] = {
-        Representation::Tagged(),  // context
-        Representation::Tagged(),  // receiver
-    };
-    descriptor->register_param_count_ = 2;
-    descriptor->register_params_ = registers;
-    descriptor->param_representations_ = representations;
-  }
 }