downgrade to kirby v3

kirby/config/fields/select.php

@@ -1,7 +1,5 @@
 <?php
 
-use Kirby\Field\FieldOptions;
-
 return [
 	'extends' => 'radio',
 	'props' => [
@@ -22,16 +20,5 @@ return [
 		'placeholder' => function (string $placeholder = '—') {
 			return $placeholder;
 		},
-	],
-	'methods' => [
-		'getOptions' => function () {
-			$props = FieldOptions::polyfill($this->props);
-
-			// disable safe mode as the select field does not
-			// render HTML for the option text
-			$options = FieldOptions::factory($props['options'], false);
-
-			return $options->render($this->model());
-		}
 	]
 ];