PPC/s390: [stubs] An easier way of defining a stub call interface descriptor.

src/ppc/interface-descriptors-ppc.cc

Index: src/ppc/interface-descriptors-ppc.cc
diff --git a/src/ppc/interface-descriptors-ppc.cc b/src/ppc/interface-descriptors-ppc.cc
index 9c7f6acae086b233826c369bdbeb355e0d230d49..df401f25e30cf79b6e21353478ef855eab3f1f92 100644
--- a/src/ppc/interface-descriptors-ppc.cc
+++ b/src/ppc/interface-descriptors-ppc.cc
@@ -71,9 +71,6 @@ const Register MathPowIntegerDescriptor::exponent() {
 const Register GrowArrayElementsDescriptor::ObjectRegister() { return r3; }
 const Register GrowArrayElementsDescriptor::KeyRegister() { return r6; }
 
-const Register HasPropertyDescriptor::ObjectRegister() { return r3; }
-const Register HasPropertyDescriptor::KeyRegister() { return r6; }
-
 void FastNewClosureDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {r5};