N°4624 align phpunit annotations

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

test/core/UniquenessConstraintTest.php

@@ -14,11 +14,7 @@ use MetaModel;
  *
  * @package Combodo\iTop\Test\UnitTest\Core
  */
-/**
- * @runTestsInSeparateProcesses
- * @preserveGlobalState disabled
- * @backupGlobals disabled
- */class UniquenessConstraintTest extends ItopTestCase
+class UniquenessConstraintTest extends ItopTestCase
 {
 	protected function setUp()
 	{