Correct warnings in authgui.inc. #13446
Correct warnings in authgui.inc. #13446

* Unused variables $user_settings, $g in display_error_form()
* Unused variable $nifty_background in display_login_form()
* Unused variable $cssfile in display_login_form()
  This variable has been deprecated by $logincssfile since e79ff1ee2c0

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