Remove special output_dir from cloud_print's BUILD files.

cloud_print/virtual_driver/win/install/BUILD.gn

 # Copyright 2015 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("//chrome/process_version_rc_template.gni")
 import("//tools/grit/grit_rule.gni")
 
 assert(is_win)
 
 executable("virtual_driver_setup") {
@@ skipping 44 matching lines @@
   output = "$target_gen_dir/virtual_driver_setup.rc"
 }
 
 grit("resources") {
   visibility = [ ":*" ]
 
   source = "virtual_driver_setup_resources.grd"
 
   # TODO(thakis): Consider removing this in favor of the default directory,
   # https://crbug.com/697092
-  output_dir = "$root_gen_dir/virtual_driver_setup_resources"
+  # output_dir = "$root_gen_dir/virtual_driver_setup_resources"

[Nico, 2017/03/10 15:18:22]

this is still commented out...

 
   outputs = [
     "grit/virtual_driver_setup_resources.h",
     "virtual_driver_setup_resources_ar.rc",
     "virtual_driver_setup_resources_bg.rc",
     "virtual_driver_setup_resources_bn.rc",
     "virtual_driver_setup_resources_ca.rc",
     "virtual_driver_setup_resources_cs.rc",
     "virtual_driver_setup_resources_da.rc",
     "virtual_driver_setup_resources_de.rc",
@@ skipping 37 matching lines @@
     "virtual_driver_setup_resources_ta.rc",
     "virtual_driver_setup_resources_te.rc",
     "virtual_driver_setup_resources_th.rc",
     "virtual_driver_setup_resources_tr.rc",
     "virtual_driver_setup_resources_uk.rc",
     "virtual_driver_setup_resources_vi.rc",
     "virtual_driver_setup_resources_zh-CN.rc",
     "virtual_driver_setup_resources_zh-TW.rc",
   ]
 }