[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 9c225e80cdbf457f2fff2957ae6fb7260dbbe502..906c369172086454690cf6b6d612ff8204d3bc8a 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::MaybeDropFrames() {
   // Check whether we need to drop frames to restart a function on the stack.
   ExternalReference restart_fp =