Delete Placeholder in Reset password form

Hello All.
Maybe someone has a snippet to remove this Placeholder?
I added an example below, but it doesn’t work for me.

Thanks for help!

add_filter( "um__password_form_field", "remove_placeholder", 10, 2 );

function remove_placeholder( $output, $set_mode ) {

    if( $set_mode == 'password' ) {
        $output = str_replace( 'placeholder="Enter your username or email"', 'placeholder=""', $output );
    }
    return $output;
}