Disable Whitelist/Blacklist feature for release

See #39 for why this is needed

php/get.php

@@ -1,15 +0,0 @@
-<?php
-if(!isset($_GET['list']))
-    die();
-
-$type = $_GET['list'];
-$rawList = file_get_contents("/etc/pihole/${type}list.txt");
-$list = explode("\n", $rawList);
-
-// Get rid of empty lines
-for($i = sizeof($list)-1; $i >= 0; $i--) {
-    if($list[$i] == "")
-        unset($list[$i]);
-}
-
-echo json_encode(array_values($list));