Remove error suppression usage from db_connect()
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index b2d0bcc..6ab3049 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -107,7 +107,7 @@
 			$mysqli->options(MYSQLI_INIT_COMMAND, 'SET SESSION sql_mode="STRICT_ALL_TABLES"');
 		}
 
-		return @$mysqli->real_connect($hostname, $this->username, $this->password, $this->database, $port, NULL, $client_flags)
+		return $mysqli->real_connect($hostname, $this->username, $this->password, $this->database, $port, NULL, $client_flags)
 			? $mysqli : FALSE;
 	}