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

src/ppc/macro-assembler-ppc.h

Index: src/ppc/macro-assembler-ppc.h
diff --git a/src/ppc/macro-assembler-ppc.h b/src/ppc/macro-assembler-ppc.h
index baa51ab0915086b355ed9c30a662c1dd875a1fed..6feba476f540a01470ff3bbe0c3cd7b227b5839f 100644
--- a/src/ppc/macro-assembler-ppc.h
+++ b/src/ppc/macro-assembler-ppc.h
@@ -20,7 +20,6 @@ const Register kReturnRegister2 = {Register::kCode_r5};
 const Register kJSFunctionRegister = {Register::kCode_r4};
 const Register kContextRegister = {Register::kCode_r30};
 const Register kInterpreterAccumulatorRegister = {Register::kCode_r3};
-const Register kInterpreterRegisterFileRegister = {Register::kCode_r14};
 const Register kInterpreterBytecodeOffsetRegister = {Register::kCode_r15};
 const Register kInterpreterBytecodeArrayRegister = {Register::kCode_r16};
 const Register kInterpreterDispatchTableRegister = {Register::kCode_r17};