Expand scope of enable_hotwording. (try 2)

chrome/browser/BUILD.gn

Index: chrome/browser/BUILD.gn
diff --git a/chrome/browser/BUILD.gn b/chrome/browser/BUILD.gn
index e06278f7b030c356c6c4c16e7e596465df39ceb3..5ce556531fb8dc7bccb31a573d56d978ea01d78b 100644
--- a/chrome/browser/BUILD.gn
+++ b/chrome/browser/BUILD.gn
@@ -22,13 +22,6 @@ if (is_desktop_linux) {
   import("//build/config/linux/pkg_config.gni")
 }
 
-declare_args() {
-  # 'Ok Google' hotwording is disabled by default. Set to true to enable. (This
-  # will download a closed-source NaCl module at startup.) Chrome-branded
-  # ChromeOS builds have this enabled by default.
-  enable_hotwording = is_chrome_branded && is_chromeos
-}
-
 additional_modules_list_file =
     "$root_gen_dir/chrome/browser/internal/additional_modules_list.txt"