Revert "Hide lucid sleep setting in guest mode"

Guest is a primary user when logged in, so my previous
fix hiding the checkbox was unnecessary. The checkbox
should work and currently does work.

This reverts commit ae8d1b4f.

BUG=448551
R=dbeam@chromium.org

Review URL: https://codereview.chromium.org/1020763002

Cr-Commit-Position: refs/heads/master@{#321431}

chrome/browser/ui/webui/options/browser_options_handler.cc

@@ -673,7 +673,6 @@ void BrowserOptionsHandler::GetLocalizedValues(base::DictionaryValue* values) {
 #if defined(OS_CHROMEOS)
   values->SetBoolean(
       "showWakeOnWifi",
-      !Profile::FromWebUI(web_ui())->IsGuestSession() &&
       chromeos::WakeOnWifiManager::Get()->WakeOnWifiSupported() &&
       chromeos::switches::WakeOnWifiEnabled());
   const bool have_disable_time_zone_tracking_option_switch =