Remove unnecessary member variables in RecordWrite on ARM64.

R=mvstanton@chromium.org

Review URL: https://codereview.chromium.org/538493002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@23646 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm64/code-stubs-arm64.h

@@ -333,11 +333,6 @@ class RecordWriteStub: public PlatformCodeStub {
   class RememberedSetActionBits: public BitField<RememberedSetAction, 15, 1> {};
   class SaveFPRegsModeBits: public BitField<SaveFPRegsMode, 16, 1> {};
 
-  Register object_;
-  Register value_;
-  Register address_;
-  RememberedSetAction remembered_set_action_;
-  SaveFPRegsMode save_fp_regs_mode_;
   Label slow_;
   RegisterAllocation regs_;
 };