Improve GN handling of directory templates.

tools/gn/ninja_target_writer.cc

 // 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.
 
 #include "tools/gn/ninja_target_writer.h"
 
 #include <fstream>
 #include <sstream>
 
 #include "base/file_util.h"
@@ skipping 150 matching lines @@
   // Extra hard deps passed in.
   for (size_t i = 0; i < extra_hard_deps.size(); i++) {
     out_ << " ";
     path_output_.WriteFile(out_,
         helper_.GetTargetOutputFile(extra_hard_deps[i]));
   }
 
   out_ << "\n";
   return " | " + stamp_file_string;
 }
-
-FileTemplate NinjaTargetWriter::GetOutputTemplate() const {
-  const Target::FileList& outputs = target_->action_values().outputs();
-  std::vector<std::string> output_template_args;
-  for (size_t i = 0; i < outputs.size(); i++) {
-    // All outputs should be in the output dir.
-    output_template_args.push_back(
-        RemovePrefix(outputs[i].value(),
-                     settings_->build_settings()->build_dir().value()));
-  }
-  return FileTemplate(target_->settings(), output_template_args);
-}