Fix #213: Remove domainr example

examples/domainr_search_domain_name_availability.php

@@ -1,14 +0,0 @@
-<?php
-require '../src/Curl/Curl.php';
-
-use \Curl\Curl;
-
-$curl = new Curl();
-$curl->get('https://api.domainr.com/v1/search', array(
-    'client_id' => 'php_curl_class',
-    'q' => 'example',
-));
-
-foreach ($curl->response->results as $result) {
-    echo $result->domain . ' is ' . $result->availability . '.' . "\n";
-}