Fix tags listing

Fix #1994
* Remove unused method in tag repository

src/Wallabag/CoreBundle/Repository/TagRepository.php

@@ -3,8 +3,6 @@
 namespace Wallabag\CoreBundle\Repository;
 
 use Doctrine\ORM\EntityRepository;
-use Pagerfanta\Adapter\DoctrineORMAdapter;
-use Pagerfanta\Pagerfanta;
 
 class TagRepository extends EntityRepository
 {
@@ -22,22 +20,6 @@ class TagRepository extends EntityRepository
             ->where('e.user = :userId')->setParameter('userId', $userId);
     }
 
-    /**
-     * Find Tags and return a Pager.
-     *
-     * @param int $userId
-     *
-     * @return Pagerfanta
-     */
-    public function findTags($userId)
-    {
-        $qb = $this->getQbForAllTags($userId);
-
-        $pagerAdapter = new DoctrineORMAdapter($qb);
-
-        return new Pagerfanta($pagerAdapter);
-    }
-
     /**
      * Find Tags.
      *