Remove leftover declaration in isolate.h

src/isolate.h

 // Copyright 2012 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.
 
 #ifndef V8_ISOLATE_H_
 #define V8_ISOLATE_H_
 
 #include <memory>
 #include <queue>
 #include <set>
@@ skipping 683 matching lines @@
   Handle<JSArray> CaptureCurrentStackTrace(
       int frame_limit,
       StackTrace::StackTraceOptions options);
   Handle<Object> CaptureSimpleStackTrace(Handle<JSReceiver> error_object,
                                          Handle<Object> caller);
   MaybeHandle<JSReceiver> CaptureAndSetDetailedStackTrace(
       Handle<JSReceiver> error_object);
   MaybeHandle<JSReceiver> CaptureAndSetSimpleStackTrace(
       Handle<JSReceiver> error_object, Handle<Object> caller);
   Handle<JSArray> GetDetailedStackTrace(Handle<JSObject> error_object);
-  Handle<JSArray> GetDetailedFromSimpleStackTrace(
-      Handle<JSObject> error_object);
 
   // Returns if the given context may access the given global object. If
   // the result is false, the pending exception is guaranteed to be
   // set.
   bool MayAccess(Handle<Context> accessing_context, Handle<JSObject> receiver);
 
   void SetFailedAccessCheckCallback(v8::FailedAccessCheckCallback callback);
   void ReportFailedAccessCheck(Handle<JSObject> receiver);
 
   // Exception throwing support. The caller should use the result
@@ skipping 925 matching lines @@
 
   EmbeddedVector<char, 128> filename_;
   FILE* file_;
   int scope_depth_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ISOLATE_H_