Revert "Dart: 2++ = 3"

sky/engine/core/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//sky/engine/bindings/scripts/scripts.gni")
 import("//sky/engine/build/scripts/scripts.gni")
 import("//sky/engine/core/core.gni")
 
 visibility = [ "//sky/engine/*" ]
 
@@ skipping 19 matching lines @@
     "//sky/engine/wtf",
     "//third_party/angle:translator",
     "//third_party/iccjpeg",
     "//third_party/libpng",
     "//third_party/ots",
     "//third_party/qcms",
     "//third_party/zlib",
     "//url",
     "//v8",
   ]
-
-  if (sky_use_dart) {
-    deps = [
-      "//dart/runtime:libdart",
-      "//dart/runtime/bin:libdart_embedder_noio",
-    ]
-  }
 }
 
 source_set("prerequisites") {
   deps = [
     ":libraries",
     ":make_core_generated",
     "//sky/engine/bindings/core/v8:bindings_core_v8_generated",
     "//sky/engine/platform",
   ]
 
   forward_dependent_configs_from = [ ":libraries" ]
 
   direct_dependent_configs = [
     "//sky/engine:config",
     "//sky/engine:inside_blink",
     "//build/config/compiler:wexit_time_destructors",
   ]
 }
 
 static_library("core") {
   output_name = "sky_core"
 
   deps = [
     ":core_generated",
     ":libraries",
     ":prerequisites",
     "//sky/engine/platform",
-    "//sky/engine/bindings2"
   ]
 
   sources = sky_core_files
 
   forward_dependent_configs_from = [ ":libraries" ]
 
   # core and core_generated are really the same thing.
   allow_circular_includes_from = [ ":core_generated" ]
 }
 
@@ skipping 380 matching lines @@
     "$sky_core_output_dir/{{source_name_part}}.h",
   ]
   args = [
     "{{source}}",
     rel_sky_core_gen_dir,
     bison_exe,
   ]
 
   deps = make_core_generated_deps
 }