Remove //mojo/platform_handle

ui/views/mus/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("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//mojo/public/mojo_application.gni")
 import("//mojo/public/mojo_application_manifest.gni")
 import("//testing/test.gni")
 import("//tools/grit/repack.gni")
@@ skipping 46 matching lines @@
     "//cc",
     "//cc/surfaces",
     "//components/bitmap_uploader",
     "//components/mus/gles2:lib",
     "//components/mus/public/cpp",
     "//components/mus/public/interfaces",
     "//mojo/converters/geometry",
     "//mojo/converters/ime",
     "//mojo/converters/input_events",
     "//mojo/converters/surfaces",
-    "//mojo/platform_handle:for_component",
     "//mojo/public/c/system:for_component",
     "//mojo/public/cpp/bindings",
     "//services/catalog/public/cpp",
     "//services/shell/public/cpp",
     "//services/shell/public/interfaces",
     "//skia",
     "//third_party/icu",
     "//ui/aura",
     "//ui/compositor",
     "//ui/display",
@@ skipping 226 matching lines @@
 }
 
 group("for_component") {
   public_deps = [
     ":mus",
   ]
   deps = [
     "//mojo/gles2",
   ]
 }