[compiler] Remove support for concurrent OSR.

src/ia32/builtins-ia32.cc

Index: src/ia32/builtins-ia32.cc
diff --git a/src/ia32/builtins-ia32.cc b/src/ia32/builtins-ia32.cc
index a8a03c4c3dc384403fa7e9d5a491b2b0d7028f05..13121d4a30822094c90365c674c9e508fdc282ce 100644
--- a/src/ia32/builtins-ia32.cc
+++ b/src/ia32/builtins-ia32.cc
@@ -2646,24 +2646,6 @@ void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
 }
 
 
-void Builtins::Generate_OsrAfterStackCheck(MacroAssembler* masm) {
-  // We check the stack limit as indicator that recompilation might be done.
-  Label ok;
-  ExternalReference stack_limit =
-      ExternalReference::address_of_stack_limit(masm->isolate());
-  __ cmp(esp, Operand::StaticVariable(stack_limit));
-  __ j(above_equal, &ok, Label::kNear);
-  {
-    FrameScope scope(masm, StackFrame::INTERNAL);
-    __ CallRuntime(Runtime::kStackGuard);
-  }
-  __ jmp(masm->isolate()->builtins()->OnStackReplacement(),
-         RelocInfo::CODE_TARGET);
-
-  __ bind(&ok);
-  __ ret(0);
-}
-
 #undef __
 }  // namespace internal
 }  // namespace v8