S390: [Interpreter] Remove register file register and replace with LoadParentFramePointer.

src/s390/interface-descriptors-s390.cc

Index: src/s390/interface-descriptors-s390.cc
diff --git a/src/s390/interface-descriptors-s390.cc b/src/s390/interface-descriptors-s390.cc
index 668ff387c9f463caad9e319da3007e5b21df48c6..843a4e28fabef220dbb6a2c4e5447703bbdd3326 100644
--- a/src/s390/interface-descriptors-s390.cc
+++ b/src/s390/interface-descriptors-s390.cc
@@ -331,9 +331,8 @@ void ApiCallbackDescriptorBase::InitializePlatformSpecific(
 void InterpreterDispatchDescriptor::InitializePlatformSpecific(
     CallInterfaceDescriptorData* data) {
   Register registers[] = {
-      kInterpreterAccumulatorRegister, kInterpreterRegisterFileRegister,
-      kInterpreterBytecodeOffsetRegister, kInterpreterBytecodeArrayRegister,
-      kInterpreterDispatchTableRegister};
+      kInterpreterAccumulatorRegister, kInterpreterBytecodeOffsetRegister,
+      kInterpreterBytecodeArrayRegister, kInterpreterDispatchTableRegister};
   data->InitializePlatformSpecific(arraysize(registers), registers);
 }