rel #24999 : fix test failure

cosmogramme/tests/php/classes/NoticeUnimarcTest.php

@@ -38,18 +38,6 @@ class NoticeUnimarcThesaurusFieldTest extends ModelTestCase {
 
 /** @see http://forge.afi-sa.fr/issues/24999 */
 class NoticeUnimarcMultipleIsbnTest extends ModelTestCase {
-  public function setUp() {
-    parent::setUp();
-    Storm_Model_Loader::defaultToVolatile();
-  }
-
-
-  public function tearDown() {
-    Storm_Model_Loader::defaultToDb();
-    parent::tearDown();
-  }
-
-
   /** @test */
   public function withTwoIsbnsShouldKeepIsbn13() {
     $type_doc = [['code' => '0',  'label' => '',       'zone_995' => '' ],