Update array clearing for php compatibilities

remove array clearing method (lines 1911 and 2001) :
```php
$this->infos = [];
```
in profit of a more php compatible method :
```php
$this->infos = array();
```

application/libraries/Aauth.php

@@ -1908,7 +1908,7 @@ public function print_errors($divider = '<br />')
 	 */
 	public function clear_errors()
 	{
-		$this->errors = [];
+		$this->errors = array();
 		$this->CI->session->set_flashdata('errors', $this->errors);
 	}
 
@@ -1998,7 +1998,7 @@ public function print_infos($divider = '<br />')
 	 */
 	public function clear_infos()
 	{
-		$this->infos = [];
+		$this->infos = array();
 		$this->CI->session->set_flashdata('infos', $this->infos);
 	}