Remove code not needed with motranslator

- the charset is always UTF-8
- the gettext constants do not have to be defined

Signed-off-by: Michal Čihař <michal@cihar.com>

libraries/Language.php

@@ -171,9 +171,8 @@ class Language
         $GLOBALS['lang'] = $this->code;
 
         // Set locale
-        _setlocale(LC_MESSAGES, $this->code);
+        _setlocale(0, $this->code);
         _bindtextdomain('phpmyadmin', LOCALE_PATH);
-        _bind_textdomain_codeset('phpmyadmin', 'UTF-8');
         _textdomain('phpmyadmin');
 
         /* Text direction for language */