Remove no longer necessary checks

[MAILPOET-1948]

lib/Cron/Triggers/MailPoet.php

@@ -3,8 +3,6 @@ namespace MailPoet\Cron\Triggers;
 
 use MailPoet\Cron\Supervisor;
 
-if (!defined('ABSPATH')) exit;
-
 class MailPoet {
   static function run() {
     $supervisor = new Supervisor();

lib/Cron/Triggers/WordPress.php

@@ -22,8 +22,6 @@ use MailPoet\Cron\Workers\WooCommerceSync as WooCommerceSyncWorker;
 use MailPoet\Cron\Workers\Beamer as BeamerWorker;
 use MailPoet\Cron\Workers\UnsubscribeTokens;
 
-if (!defined('ABSPATH')) exit;
-
 class WordPress {
   const SCHEDULED_IN_THE_PAST = 'past';
   const SCHEDULED_IN_THE_FUTURE = 'future';