Remove non-existent git repos

Also sort the language entries in alphabetical order from their ISO code

Author: Girgias

include/languages.inc

@@ -2,49 +2,22 @@
 
 /*
  This is a list of all manual languages hosted
- within PHP SVN modules (phpdoc-{lang})
-
- Some codes, like "kr", "tw" and "hk" are not in
- conformance with the official language code standard!
-
- http://www.unicode.org/unicode/onlinedat/languages.html
+ within PHP Git repositories (https://github.com/php/doc-{lang})
 */
 $LANGUAGES = [
     'en' => 'English',
-    'ar' => 'Arabic',
-    'bg' => 'Bulgarian',
-    'pt_BR' => 'Brazilian Portuguese',
-    'zh' => 'Chinese (Simplified)',
-    'hk' => 'Chinese (Hong Kong Cantonese)',
-    'tw' => 'Chinese (Traditional)',
-    'ca' => 'Catalan',
-    'cs' => 'Czech',
-    'da' => 'Danish',
-    'nl' => 'Dutch',
-    'fi' => 'Finnish',
-    'fr' => 'French',
     'de' => 'German',
-    'el' => 'Greek',
-    'he' => 'Hebrew',
-    'hu' => 'Hungarian',
-    'id' => 'Indonesian',
+    'es' => 'Spanish',
+    'fr' => 'French',
     'it' => 'Italian',
     'ja' => 'Japanese',
-    'kr' => 'Korean',
-    'lt' => 'Lithuanian',
-    'no' => 'Norwegian',
     'pl' => 'Polish',
-    'pt' => 'Portuguese',
+    'pt_BR' => 'Brazilian Portuguese',
     'ro' => 'Romanian',
     'ru' => 'Russian',
-    'fa' => 'Persian',
-    'sr' => 'Serbian',
-    'sk' => 'Slovak',
-    'sl' => 'Slovenian',
-    'es' => 'Spanish',
-    'sv' => 'Swedish',
     'tr' => 'Turkish',
     'uk' => 'Ukrainian',
+    'zh' => 'Chinese (Simplified)',
 ];
 
 /*
@@ -57,46 +30,21 @@ $LANGUAGES = [
  - http://docs.php.net/
 */
 $INACTIVE_ONLINE_LANGUAGES = [
-    'ar' => 'Arabic',
-    'bg' => 'Bulgarian',
-    'hk' => 'Chinese (Hong Kong Cantonese)',
-    'tw' => 'Chinese (Traditional)',
-    'ca' => 'Catalan',
-    'cs' => 'Czech',
-    'da' => 'Danish',
-    'nl' => 'Dutch',
-    'fi' => 'Finnish',
-    'el' => 'Greek',
-    'he' => 'Hebrew',
-    'hu' => 'Hungarian',
-    'id' => 'Indonesian',
-    'kr' => 'Korean',
-    'lt' => 'Lithuanian',
-    'no' => 'Norwegian',
     'pl' => 'Polish',
-    'pt' => 'Portuguese',
-    'fa' => 'Persian',
     'ro' => 'Romanian',
-    'sr' => 'Serbian',
-    'sk' => 'Slovak',
-    'sl' => 'Slovenian',
-    'sv' => 'Swedish',
     'uk' => 'Ukrainian',
 ];
 
 $ACTIVE_ONLINE_LANGUAGES = array_diff($LANGUAGES, $INACTIVE_ONLINE_LANGUAGES);
 
 // Convert between language codes back and forth
-// [We use non standard languages codes and so conversion
+// [We use non-standard languages codes and so conversion
 // is needed when communicating with the outside world]
 function language_convert(string $langcode): string
 {
     global $LANGUAGES;
     switch ($langcode) {
         case 'zh_cn': return 'zh';
-        case 'zh_hk': return 'hk';
-        case 'zh_tw': return 'tw';
-        case 'ko'   : return 'kr';
         default:
             // Fallback on english if we got something wacky
             return array_key_exists($langcode, $LANGUAGES) ? $langcode : 'en';