Removes the signature in case we experience a case where the Customizer was not properly executed.

Parameters

$callbackcallable|nulloptional

Value passed through for 'wp_die_handler' filter.

Default:null

Return

Source

public function remove_preview_signature( $callback = null ) {
	_deprecated_function( __METHOD__, '4.7.0' );

	return $callback;
}

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