Remove unused code

- Remove commented code
- Remove unused/immediately overwritten variables
- Remove extraneous parameters
- Remove unreachable code
- Remove duplicate array keys

src/Util/Network.php

@@ -92,8 +92,6 @@ class Network
 	 */
 	public static function curl($url, $binary = false, &$redirects = 0, $opts = [])
 	{
-		$ret = ['return_code' => 0, 'success' => false, 'header' => '', 'info' => '', 'body' => ''];
-
 		$stamp1 = microtime(true);
 
 		$a = \get_app();
@@ -322,7 +320,6 @@ class Network
 
 		$s = @curl_exec($ch);
 
-		$base = $s;
 		$curl_info = curl_getinfo($ch);
 
 		$curlResponse = new CurlResult($url, $s, $curl_info, curl_errno($ch), curl_error($ch));

src/Util/ParseUrl.php

@@ -113,8 +113,6 @@ class ParseUrl
 	 */
 	public static function getSiteinfo($url, $no_guessing = false, $do_oembed = true, $count = 1)
 	{
-		$a = \get_app();
-
 		$siteinfo = [];
 
 		// Check if the URL does contain a scheme

src/Util/XML.php

@@ -287,9 +287,6 @@ class XML
 
 		//Initializations
 		$xml_array = [];
-		$parents = [];
-		$opened_tags = [];
-		$arr = [];
 
 		$current = &$xml_array; // Reference