Remove unused languages.

resources/lang/es_ES/config.php

@@ -1,23 +0,0 @@
-<?php
-/**
- * config.php
- * Copyright (C) 2016 thegrumpydictator@gmail.com
- *
- * This software may be modified and distributed under the terms of the
- * Creative Commons Attribution-ShareAlike 4.0 International License.
- *
- * See the LICENSE file for details.
- */
-
-return [
-    'locale'          => 'es, Spanish, es_ES, es_ES.utf8, es_ES.UTF-8',
-    'month'           => '%B %Y',
-    'month_and_day'   => '%B %e, %Y',
-    'date_time'       => '%B %e, %Y, @ %T',
-    'specific_day'    => '%e %B %Y',
-    'week_in_year'    => 'Week %W, %Y',
-    'quarter_of_year' => '%B %Y',
-    'year'            => '%Y',
-    'half_year'       => '%B %Y',
-
-];