Remove Windows support from the EDK.

mojo/edk/embedder/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("../mojo_edk.gni")
 
 mojo_edk_source_set("embedder") {
   # This isn't really a standalone target; it must be linked into the
   # mojo_system_impl component.
   mojo_edk_visibility = [ "mojo/edk/system" ]
@@ skipping 43 matching lines @@
 
   mojo_edk_visibility = [
     "mojo/edk/system",
     "mojo/edk/system:test_utils",
   ]
 
   sources = [
     "platform_channel_pair.cc",
     "platform_channel_pair.h",
     "platform_channel_pair_posix.cc",
-    "platform_channel_pair_win.cc",
     "platform_channel_utils_posix.cc",
     "platform_channel_utils_posix.h",
     "platform_handle.cc",
     "platform_handle.h",
     "platform_handle_utils.h",
     "platform_handle_utils_posix.cc",
-    "platform_handle_utils_win.cc",
     "platform_handle_vector.h",
     "platform_shared_buffer.h",
     "platform_support.h",
     "scoped_platform_handle.h",
     "simple_platform_shared_buffer.cc",
     "simple_platform_shared_buffer.h",
     "simple_platform_shared_buffer_android.cc",
     "simple_platform_shared_buffer_posix.cc",
-    "simple_platform_shared_buffer_win.cc",
     "simple_platform_support.cc",
     "simple_platform_support.h",
   ]
 
   defines = [ "MOJO_SYSTEM_IMPL_IMPLEMENTATION" ]
 
   mojo_edk_configs = [ "mojo/edk/system:system_config" ]
 
   mojo_sdk_public_deps = [ "mojo/public/cpp/system" ]
 
@@ skipping 46 matching lines @@
     "//testing/gtest",
   ]
 
   mojo_edk_deps = [
     "mojo/edk/test:test_support",
     "mojo/edk/system",
     "mojo/edk/system:test_utils",
     "mojo/edk/util",
   ]
 }