Remove some platform specific stuff from views.

ui/file_manager/BUILD.gn

Index: ui/file_manager/BUILD.gn
diff --git a/ui/file_manager/BUILD.gn b/ui/file_manager/BUILD.gn
deleted file mode 100644
index 8dd03ff035b1dd81a654876372673aa8e2813806..0000000000000000000000000000000000000000
--- a/ui/file_manager/BUILD.gn
+++ /dev/null
@@ -1,29 +0,0 @@
-# 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("//tools/grit/grit_rule.gni")
-
-grit("resources") {
-  source = "file_manager_resources.grd"
-  outputs = [
-    "grit/file_manager_resources.h",
-    "grit/file_manager_resources_map.cc",
-    "grit/file_manager_resources_map.h",
-    "file_manager_resources.pak",
-    "file_manager_resources.rc",
-  ]
-}
-
-component("file_manager") {
-  sources = [
-    "file_manager_export.h",
-    "file_manager_resource_util.cc",
-    "file_manager_resource_util.h",
-  ]
-  deps = [
-    "//base",
-    ":resources"
-  ]
-  defines = [ "FILE_MANAGER_IMPLEMENTATION" ]
-}