[mahjongg] Remove mahjongg addon because Flash is no longer supported by the browsers

mahjongg/mahjongg.php

@@ -1,35 +0,0 @@
-<?php
-
-/**
- * Name: Mah Jongg
- * Description: Ancient Chinese puzzle game that never gets old.
- * Version: 1.0
- * Author: Holger Froese
- */
-use Friendica\Core\Hook;
-
-function mahjongg_install() {
-    Hook::register('app_menu', 'addon/mahjongg/mahjongg.php', 'mahjongg_app_menu');
-}
-
-function mahjongg_app_menu($a,&$b) {
-    $b['app_menu'][] = '<div class="app-title"><a href="mahjongg">Mahjongg</a></div>';
-}
-
-
-function mahjongg_module() {}
-
-function mahjongg_content(&$a) {
-
-$o .= <<< EOT
-<br><br>
-<p align="left">
-<embed src="addon/mahjongg/mahjongg.swf" quality="high" bgcolor="#FFFFFF" width="800" height="600" name="mahjongg" align="middle" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" />
-<br><br>
-<b>Simply locate the matching tiles and find a way to clear them from the board as quickly as possible.
-A timer at the top of the screen keeps track of how you are doing.</b><br>
-</p>
-EOT;
-
-return $o;
-}