Move files from the secondary GN directory to build.

tools/gn/secondary/build/config/BUILD.gn

Index: tools/gn/secondary/build/config/BUILD.gn
diff --git a/tools/gn/secondary/build/config/BUILD.gn b/tools/gn/secondary/build/config/BUILD.gn
deleted file mode 100644
index 37572d9377178c7070b8837c1d3ade1bdc136846..0000000000000000000000000000000000000000
--- a/tools/gn/secondary/build/config/BUILD.gn
+++ /dev/null
@@ -1,50 +0,0 @@
-# Copyright (c) 2013 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.
-
-config("my_msvs") {
-  defines = [
-      "CHROMIUM_BUILD",
-      "TOOLKIT_VIEWS=1",
-      "USE_LIBJPEG_TURBO=1",
-      "ENABLE_ONE_CLICK_SIGNIN",
-      "ENABLE_REMOTING=1",
-      "ENABLE_WEBRTC=1",
-      "ENABLE_CONFIGURATION_POLICY",
-      "ENABLE_INPUT_SPEECH",
-      "ENABLE_NOTIFICATIONS",
-      "ENABLE_EGLIMAGE=1",
-      "ENABLE_TASK_MANAGER=1",
-      "ENABLE_EXTENSIONS=1",
-      "ENABLE_PLUGIN_INSTALLATION=1",
-      "ENABLE_PLUGINS=1",
-      "ENABLE_SESSION_SERVICE=1",
-      "ENABLE_THEMES=1",
-      "ENABLE_AUTOFILL_DIALOG=1",
-      "ENABLE_BACKGROUND=1",
-      "ENABLE_AUTOMATION=1",
-      "ENABLE_GOOGLE_NOW=1",
-      "ENABLE_PRINTING=1",
-      "ENABLE_CAPTIVE_PORTAL_DETECTION=1",
-      "ENABLE_APP_LIST=1",
-      "ENABLE_MESSAGE_CENTER=1",
-      "ENABLE_SETTINGS_APP=1",
-      "ENABLE_MANAGED_USERS=1",
-  ]
-}
-
-config("feature_flags") {
-  #defines = 
-}
-
-config("debug") {
-  defines = [
-    "_DEBUG",
-    "DYNAMIC_ANNOTATIONS_ENABLED=1",
-    "WTF_USE_DYNAMIC_ANNOTATIONS=1",
-  ]
-}
-
-config("release") {
-
-}