N°4624 align phpunit annotations

Remove processIsolation when not needed
When needed, make sure to have also their counterpart (preserveGlobalState and backupGlobals)

test/core/WeeklyScheduledProcessTest.php

@@ -2,17 +2,9 @@
 namespace Combodo\iTop\Test\UnitTest\Core;
 
 use Combodo\iTop\Test\UnitTest\ItopTestCase;
-use Config;
 use DateTime;
 
 
-/**
- * @runTestsInSeparateProcesses
- * @preserveGlobalState disabled
- * @backupGlobals disabled
- *
- * @package Combodo\iTop\Test\UnitTest\Core
- */
 class WeeklyScheduledProcessTest extends ItopTestCase
 {
 	protected function setUp()