Move generate_perf_events_symbols flag to VM

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "include/dart_api.h"
 
 #include "vm/bigint_operations.h"
 #include "vm/class_finalizer.h"
 #include "vm/compiler.h"
 #include "vm/dart.h"
@@ skipping 4406 matching lines @@
     } else {
       *buffer = NULL;
     }
     delete debug_region;
   } else {
     *buffer = NULL;
     *buffer_size = 0;
   }
 }
 
-
-DART_EXPORT void Dart_InitPerfEventsSupport(void* perf_events_file) {
-  Dart::set_perf_events_file(perf_events_file);
-}
-
-
 // --- Peer support ---
 
 
 DART_EXPORT Dart_Handle Dart_GetPeer(Dart_Handle object, void** peer) {
   if (peer == NULL) {
     RETURN_NULL_ERROR(peer);
   }
   Isolate* isolate = Isolate::Current();
   DARTSCOPE(isolate);
   const Object& obj = Object::Handle(isolate, Api::UnwrapHandle(object));
@@ skipping 22 matching lines @@
   }
   {
     NoGCScope no_gc;
     RawObject* raw_obj = obj.raw();
     isolate->heap()->SetPeer(raw_obj, peer);
   }
   return Api::Success(isolate);
 }
 
 }  // namespace dart