GN: Do not use forward_dependent_configs_from variable.

mojo/public/mojo_application.gni

 # 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("//build/toolchain/toolchain.gni")
 import("mojo.gni")
 
 # Generate a binary Mojo application in a self-named directory.
 # Application resources are copied to a "resources" directory alongside the app.
 # The parameters of this template are those of a shared library.
@@ skipping 78 matching lines @@
                                    mojo_root) ]
       }
 
       deps = rebase_path([
                            "mojo/public/c/system",
                            "mojo/public/platform/native:system",
                          ],
                          ".",
                          mojo_root)
       deps += mojo_deps
-      if (defined(invoker.forward_dependent_configs_from)) {
-        forward_dependent_configs_from = invoker.forward_dependent_configs_from
-      }
       if (defined(invoker.public_deps)) {
         public_deps = invoker.public_deps
       }
       if (defined(invoker.all_dependent_configs)) {
         all_dependent_configs = invoker.all_dependent_configs
       }
       if (defined(invoker.public_configs)) {
         public_configs = invoker.public_configs
       }
       if (defined(invoker.check_includes)) {
@@ skipping 95 matching lines @@
                                    mojo_root) ]
       }
 
       deps = rebase_path([
                            "mojo/public/c/system",
                            "mojo/public/platform/nacl:system",
                          ],
                          ".",
                          mojo_root)
       deps += mojo_deps
-      if (defined(invoker.forward_dependent_configs_from)) {
-        forward_dependent_configs_from = invoker.forward_dependent_configs_from
-      }
       if (defined(invoker.public_deps)) {
         public_deps = invoker.public_deps
       }
       if (defined(invoker.all_dependent_configs)) {
         all_dependent_configs = invoker.all_dependent_configs
       }
       if (defined(invoker.public_configs)) {
         public_configs = invoker.public_configs
       }
       if (defined(invoker.check_includes)) {
@@ skipping 156 matching lines @@
       ]
 
       deps = mojo_deps
 
       public_deps = [
         ":$zip_action_name",
       ]
     }
   }
 }