Remove some unneeded DEPS from //sky

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/build/scripts/scripts.gni")
 import("//sky/engine/core/core.gni")
 import("//mojo/dart/embedder/embedder.gni")
 
 visibility = [ "//sky/engine/*" ]
 
 rel_sky_core_gen_dir = rebase_path(sky_core_output_dir, root_build_dir)
 
 source_set("libraries") {
   public_deps = [
     "//base",
-    "//gpu/command_buffer/client:gles2_c_lib",
     "//mojo/application",
     "//mojo/common",
     "//mojo/public/c/system",
     "//mojo/public/cpp/bindings",
     "//mojo/public/cpp/system",
     "//mojo/public/cpp/utility",
     "//mojo/public/interfaces/application",
-    "//mojo/services/keyboard/public/interfaces",
-    "//mojo/services/navigation/public/interfaces",
-    "//mojo/services/network/public/interfaces",
-    "//mojo/services/view_manager/public/cpp",
     "//skia",
     "//sky/engine/tonic:tonic",
     "//sky/engine/wtf",
     "//third_party/angle:translator",
     "//third_party/iccjpeg",
     "//third_party/libpng",
     "//third_party/ots",
     "//third_party/qcms",
     "//third_party/zlib",
     "//url",
@@ skipping 468 matching lines @@
     "$sky_core_output_dir/{{source_name_part}}.h",
   ]
   args = [
     "{{source}}",
     rel_sky_core_gen_dir,
     bison_exe,
   ]
 
   deps = make_core_generated_deps
 }