Revert un-needed v4 tweaks

Author: iMattPro

composer.json

@@ -3,7 +3,7 @@
 	"type": "phpbb-extension",
 	"description": "An official phpBB extension that allows users to embed content from allowed sites using a [media] BBCode, or from simply posting a supported URL in plain text.",
 	"homepage": "https://www.phpbb.com/customise/db/extension/mediaembed/",
-	"version": "2.1.0-dev",
+	"version": "2.0.4-dev",
 	"license": "GPL-2.0-only",
 	"authors": [
 		{

ext.php

@@ -14,9 +14,10 @@ class ext extends \phpbb\extension\base
 {
 	/**
 	 * @var string Minimum requirements:
-	 * phpBB 4.0.0 because using Icon()
+	 * phpBB 3.3.2 because using role_exists in migrations
+	 * phpBB 3.3.2 because TextFormatter 2.7.5 supports clyp.it and codepen.com
 	 */
-	public const PHPBB_MINIMUM = '4.0.0-dev';
+	public const PHPBB_MINIMUM = '3.3.2';
 
 	/**
 	 * @var string YAML file extension