Revert of Add cloud_print to the GN build.

cloud_print/virtual_driver/win/BUILD.gn

Index: cloud_print/virtual_driver/win/BUILD.gn
diff --git a/cloud_print/virtual_driver/win/BUILD.gn b/cloud_print/virtual_driver/win/BUILD.gn
deleted file mode 100644
index 110b5a36f0272f9266bcaf057507c0cf5e8dcafc..0000000000000000000000000000000000000000
--- a/cloud_print/virtual_driver/win/BUILD.gn
+++ /dev/null
@@ -1,19 +0,0 @@
-# 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.
-
-assert(is_win)
-
-source_set("win") {
-  sources = [
-    "virtual_driver_consts.cc",
-    "virtual_driver_consts.h",
-    "virtual_driver_helpers.cc",
-    "virtual_driver_helpers.h",
-  ]
-
-  deps = [
-    "//base",
-    "//cloud_print/common",
-  ]
-}