create an actual logout module instead of relying on internal variables

Zotlabs/Module/Logout.php

@@ -0,0 +1,12 @@
+<?php
+
+namespace Zotlabs\Module;
+
+class Logout extends \Zotlabs\Web\Controller {
+
+	function init() {
+		\App::$session->nuke();
+		goaway(z_root());
+
+	}
+}

include/channel.php

@@ -2353,13 +2353,12 @@ function account_remove($account_id,$local = true,$unset_session=true) {
 
 
 	if ($unset_session) {
-		unset($_SESSION['authenticated']);
+		App::$session->nuke();
-		unset($_SESSION['uid']);
+		notice( sprintf(t('Account \'%s\' deleted'),$account_email) . EOL);
-		notice( sprintf(t("User '%s' deleted"),$account_email) . EOL);
 		goaway(z_root());
 	}
-	return $r;
 
+	return $r;
 }
 
 /**