ntp4: remove apps promo 'no, thanks' link.

chrome/browser/ui/webui/ntp/app_launcher_handler.cc

Index: chrome/browser/ui/webui/ntp/app_launcher_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
index 48b5a8dd1621962b9d3f80fa7486c7a23c35504f..acf17acc598ee4ecff9f7a99c0ae63fc98e784ba 100644
--- a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
+++ b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
@@ -592,6 +592,8 @@ void AppLauncherHandler::HandleHideAppsPromo(const ListValue* args) {
   // If the user has intentionally hidden the promotion, we'll uninstall all the
   // default apps (we know the user hasn't installed any apps on their own at
   // this point, or the promotion wouldn't have been shown).
+  // TODO(estade): this isn't used right now as we sort out the future of the
+  // apps promo on ntp4.
   if (NewTabUI::Ntp4Enabled()) {
     UninstallDefaultApps();
     extension_service_->apps_promo()->HidePromo();