Drop unused static microtask API

src/api.cc

 // 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.
 
 #include "api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #include <cmath>  // For isnan.
 #include "../include/v8-debug.h"
 #include "../include/v8-profiler.h"
@@ skipping 6436 matching lines @@
 }
 
 
 void V8::RemoveMemoryAllocationCallback(MemoryAllocationCallback callback) {
   i::Isolate* isolate = i::Isolate::Current();
   isolate->memory_allocator()->RemoveMemoryAllocationCallback(
       callback);
 }
 
 
-void V8::RunMicrotasks(Isolate* isolate) {
-  isolate->RunMicrotasks();
-}
-
-
-void V8::EnqueueMicrotask(Isolate* isolate, Handle<Function> microtask) {
-  isolate->EnqueueMicrotask(microtask);
-}
-
-
-void V8::SetAutorunMicrotasks(Isolate* isolate, bool autorun) {
-  isolate->SetAutorunMicrotasks(autorun);
-}
-
-
 void V8::TerminateExecution(Isolate* isolate) {
   reinterpret_cast<i::Isolate*>(isolate)->stack_guard()->TerminateExecution();
 }
 
 
 bool V8::IsExecutionTerminating(Isolate* isolate) {
   i::Isolate* i_isolate = isolate != NULL ?
       reinterpret_cast<i::Isolate*>(isolate) : i::Isolate::Current();
   return IsExecutionTerminatingCheck(i_isolate);
 }
@@ skipping 1112 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal