chromeos: Don't explicitly set system tray visibility during initialization

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

Index: chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
diff --git a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
index b1d7549e0d312dc134d3f887bca5ece3098de7bf..4beb21c9bc617bfecc52d66169daacb22459d668 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -313,12 +313,6 @@ SystemTrayDelegateChromeOS::~SystemTrayDelegateChromeOS() {
   user_manager::UserManager::Get()->RemoveSessionStateObserver(this);
 }
 
-// Overridden from ash::SystemTrayDelegate:
-bool SystemTrayDelegateChromeOS::GetTrayVisibilityOnStartup() {
-  // In case of OOBE / sign in screen tray will be shown later.
-  return LoginState::Get()->IsUserLoggedIn();
-}
-
 ash::LoginStatus SystemTrayDelegateChromeOS::GetUserLoginStatus() const {
   if (!LoginState::Get()->IsUserLoggedIn())
     return ash::LoginStatus::NOT_LOGGED_IN;