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

src/mips/macro-assembler-mips.cc

Index: src/mips/macro-assembler-mips.cc
diff --git a/src/mips/macro-assembler-mips.cc b/src/mips/macro-assembler-mips.cc
index 1bfb3688e997e45cdee384e22b71b1c93f5e9c23..a28c04a8e21f9dc1b7519d1969846d0b393b5212 100644
--- a/src/mips/macro-assembler-mips.cc
+++ b/src/mips/macro-assembler-mips.cc
@@ -3885,16 +3885,6 @@ void MacroAssembler::Push(Handle<Object> handle) {
   push(at);
 }
 
-
-void MacroAssembler::DebugBreak() {
-  PrepareCEntryArgs(0);
-  PrepareCEntryFunction(
-      ExternalReference(Runtime::kHandleDebuggerStatement, isolate()));
-  CEntryStub ces(isolate(), 1);
-  DCHECK(AllowThisStubCall(&ces));
-  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 =