[debugger] remove debugger statement support from FCG/CS.

src/ia32/macro-assembler-ia32.cc

Index: src/ia32/macro-assembler-ia32.cc
diff --git a/src/ia32/macro-assembler-ia32.cc b/src/ia32/macro-assembler-ia32.cc
index 084901783e2ddba1c002483ac23115445bc62a0d..0f93081bcea0725e45e94a8b4d22b5e54b4ee751 100644
--- a/src/ia32/macro-assembler-ia32.cc
+++ b/src/ia32/macro-assembler-ia32.cc
@@ -673,14 +673,6 @@ void MacroAssembler::RecordWriteCodeEntryField(Register js_function,
   bind(&done);
 }
 
-void MacroAssembler::DebugBreak() {
-  Move(eax, Immediate(0));
-  mov(ebx, Immediate(ExternalReference(Runtime::kHandleDebuggerStatement,
-                                       isolate())));
-  CEntryStub ces(isolate(), 1);
-  call(ces.GetCode(), RelocInfo::DEBUGGER_STATEMENT);
-}
-
 void MacroAssembler::Cvtsi2sd(XMMRegister dst, const Operand& src) {
   xorps(dst, dst);
   cvtsi2sd(dst, src);