Use Doctrine for the opens and clicks exporters

This commit refactors the code that handles exporting e-mails opens and
clicks when generating the personal data file to use Doctrine instead of
Paris. I opted to do this in this task as opens and clicks code share
some functionality, and I didn't want to add more code that relies on
Paris, as we are eventually going to remove it.

[MAILPOET-3738]

lib/Models/StatisticsClicks.php

@@ -3,9 +3,6 @@
 namespace MailPoet\Models;
 
 use DateTimeInterface;
-use MailPoet\DI\ContainerWrapper;
-use MailPoet\Entities\UserAgentEntity;
-use MailPoetVendor\Doctrine\ORM\EntityManager;
 
 /**
  * @property int $newsletterId
@@ -17,35 +14,6 @@ use MailPoetVendor\Doctrine\ORM\EntityManager;
 class StatisticsClicks extends Model {
   public static $_table = MP_STATISTICS_CLICKS_TABLE; // phpcs:ignore PSR2.Classes.PropertyDeclaration
 
-  public static function getAllForSubscriber(Subscriber $subscriber) {
-    $entityManager = ContainerWrapper::getInstance()->get(EntityManager::class);
-    $userAgentsTable = $entityManager->getClassMetadata(UserAgentEntity::class)->getTableName();
-
-    return static::tableAlias('clicks')
-      ->select('clicks.id', 'id')
-      ->select('newsletter_rendered_subject')
-      ->select('clicks.created_at', 'created_at')
-      ->select('url')
-      ->select('user_agent.user_agent')
-      ->join(
-       SendingQueue::$_table,
-       ['clicks.queue_id', '=', 'queue.id'],
-       'queue'
-      )
-      ->join(
-        NewsletterLink::$_table,
-        ['clicks.link_id', '=', 'link.id'],
-        'link'
-      )
-      ->leftOuterJoin(
-        $userAgentsTable,
-        ['clicks.user_agent_id', '=', 'user_agent.id'],
-        'user_agent'
-      )
-      ->where('clicks.subscriber_id', $subscriber->id())
-      ->orderByAsc('url');
-  }
-
   public static function findLatestPerNewsletterBySubscriber(Subscriber $subscriber, DateTimeInterface $from, DateTimeInterface $to) {
     // subquery to find latest click IDs for each newsletter
     $table = self::$_table;