Remove API_TIMELINE_DURATION from Dart_ReadKernelBinary.

runtime/vm/dart_api_impl.cc

 // Copyright (c) 2013, 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 "include/dart_mirrors_api.h"
 #include "include/dart_native_api.h"
 
 #include "lib/stacktrace.h"
 #include "platform/assert.h"
@@ skipping 5377 matching lines @@
 #endif  // !defined(PRODUCT)
   library ^= tmp.raw();
   library.set_debuggable(true);
   I->object_store()->set_root_library(library);
   return Api::NewHandle(T, library.raw());
 }
 
 
 DART_EXPORT void* Dart_ReadKernelBinary(const uint8_t* buffer,
                                         intptr_t buffer_len) {
-  API_TIMELINE_DURATION;
-
 #if defined(DART_PRECOMPILED_RUNTIME)
   UNREACHABLE();
   return NULL;
 #else
   kernel::Program* program =
       ReadPrecompiledKernelFromBuffer(buffer, buffer_len);
   return program;
 #endif
 }
 
@@ skipping 1556 matching lines @@
 }
 
 
 DART_EXPORT void Dart_DumpNativeStackTrace(void* context) {
 #ifndef PRODUCT
   Profiler::DumpStackTrace(context);
 #endif
 }
 
 }  // namespace dart