Remove GetRootNaN

src/runtime/runtime-numbers.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/runtime/runtime-utils.h"
 
 #include "src/arguments.h"
 #include "src/base/bits.h"
 #include "src/bootstrapper.h"
 #include "src/codegen.h"
@@ skipping 195 matching lines @@
 
 
 RUNTIME_FUNCTION(Runtime_IsSmi) {
   SealHandleScope shs(isolate);
   DCHECK_EQ(1, args.length());
   CONVERT_ARG_CHECKED(Object, obj, 0);
   return isolate->heap()->ToBoolean(obj->IsSmi());
 }
 
 
-RUNTIME_FUNCTION(Runtime_GetRootNaN) {
-  SealHandleScope shs(isolate);
-  DCHECK_EQ(0, args.length());
-  return isolate->heap()->nan_value();
-}
-
-
 RUNTIME_FUNCTION(Runtime_GetHoleNaNUpper) {
   HandleScope scope(isolate);
   DCHECK_EQ(0, args.length());
   return *isolate->factory()->NewNumberFromUint(kHoleNanUpper32);
 }
 
 
 RUNTIME_FUNCTION(Runtime_GetHoleNaNLower) {
   HandleScope scope(isolate);
   DCHECK_EQ(0, args.length());
   return *isolate->factory()->NewNumberFromUint(kHoleNanLower32);
 }
 
 
 }  // namespace internal
 }  // namespace v8