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

src/s390/macro-assembler-s390.h

Index: src/s390/macro-assembler-s390.h
diff --git a/src/s390/macro-assembler-s390.h b/src/s390/macro-assembler-s390.h
index d1b701dc1f57a4d31496f07a309d7f0017bd612d..59715a863431a8efea2c97efc006fe2f7a93596a 100644
--- a/src/s390/macro-assembler-s390.h
+++ b/src/s390/macro-assembler-s390.h
@@ -20,7 +20,6 @@ const Register kReturnRegister2 = {Register::kCode_r4};
 const Register kJSFunctionRegister = {Register::kCode_r3};
 const Register kContextRegister = {Register::kCode_r13};
 const Register kInterpreterAccumulatorRegister = {Register::kCode_r2};
-const Register kInterpreterRegisterFileRegister = {Register::kCode_r4};
 const Register kInterpreterBytecodeOffsetRegister = {Register::kCode_r5};
 const Register kInterpreterBytecodeArrayRegister = {Register::kCode_r6};
 const Register kInterpreterDispatchTableRegister = {Register::kCode_r8};