Remove GYP annotations from chrome, ui, tools GN files.

chrome/common/extensions/api/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("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/json_schema_api.gni")
 import("//tools/json_schema_compiler/json_features.gni")
 
 assert(enable_extensions)
@@ skipping 144 matching lines @@
 if (is_chromeos) {
   extensions_api_uncompiled_sources += [
     "chromeos_info_private.json",
     "media_player_private.json",
   ]
 }
 
 extensions_api_schema_include_rules =
     "extensions/common/api:extensions::api::%(namespace)s"
 
-# GYP version: chrome/common/extensions/api/api.gyp:chrome_api
 json_schema_api("api") {
   sources = schema_sources
   schemas = true
   bundle = true
   configs = [ "//build/config:precompiled_headers" ]
   bundle_name = "Chrome"
   schema_include_rules = extensions_api_schema_include_rules
 
   uncompiled_bundle_schema_sources = [
     "app.json",
@@ skipping 18 matching lines @@
   }
 
   uncompiled_sources = extensions_api_uncompiled_sources
 
   root_namespace = extensions_api_root_namespace
   deps = [
     "//extensions/common/api",
   ]
 }
 
-# GYP version: chrome/browser/extensions/api/api.gyp:chrome_api_registration
 json_schema_api("api_registration") {
   sources = schema_sources
   impl_dir = "//chrome/browser/extensions/api"
   bundle_registration = true
   configs = [ "//build/config:precompiled_headers" ]
   bundle_name = "Chrome"
   root_namespace = extensions_api_root_namespace
   schema_include_rules = extensions_api_schema_include_rules
 
   uncompiled_sources = extensions_api_uncompiled_sources
@@ skipping 54 matching lines @@
 }
 
 group("extensions_features") {
   public_deps = [
     ":api_features",
     ":behavior_features",
     ":manifest_features",
     ":permission_features",
   ]
 }