MIPS: Cleaned up an unused declaration in lithium-codegen-mips.h.

DoDeferredBinaryOpStub is not used (or even defined) anywhere.
MIPS can handle special cases of div, which is the only place it's used in the ARM version.

BUG=
TEST=

Review URL: http://codereview.chromium.org/8588005
Patch from Gergely Kis <gergely@homejinni.com>.

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10018 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/mips/lithium-codegen-mips.h

@@ -101,10 +101,6 @@ class LCodeGen BASE_EMBEDDED {
   // information on it.
   void FinishCode(Handle<Code> code);
 
-  // Deferred code support.
-  template<int T>
-  void DoDeferredBinaryOpStub(LTemplateInstruction<1, 2, T>* instr,
-                              Token::Value op);
   void DoDeferredNumberTagD(LNumberTagD* instr);
   void DoDeferredNumberTagI(LNumberTagI* instr);
   void DoDeferredTaggedToI(LTaggedToI* instr);