Revert last commit

becauase it throws errors like this in travis:

Fatal error: Class 'Athletic\AthleticEvent' not found in
/home/travis/build/SaftIng/Saft.rdf/vendor/doctrine/instantiator/tests/DoctrineTest/InstantiatorPerformance/InstantiatorPerformanceEvent.php
on line 31

Call Stack:
    0.0002     245880   1. {main}()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/phpunit/phpunit:0
    0.0038     762536   2. PHPUnit_TextUI_Command::main()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/phpunit/phpunit:52
    0.0038     769648   3. PHPUnit_TextUI_Command->run()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/phpunit/src/TextUI/Command.php:100
    0.1134    7661208   4. PHPUnit_TextUI_TestRunner->doRun()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/phpunit/src/TextUI/Command.php:149
    7.3897   20797656   5. PHP_CodeCoverage_Report_Clover->process()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/phpunit/src/TextUI/TestRunner.php:457
    7.3898   20798480   6. PHP_CodeCoverage->getReport()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/php-code-
coverage/src/CodeCoverage/Report/Clover.php:43
    7.3902   20833640   7. PHP_CodeCoverage_Report_Factory->create()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/php-code-
coverage/src/CodeCoverage.php:121
    7.3902   20833768   8. PHP_CodeCoverage->getData()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/php-code-
coverage/src/CodeCoverage/Report/Factory.php:24
    7.3902   20833984   9. PHP_CodeCoverage->addUncoveredFilesFromWhitelist()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/php-code-
coverage/src/CodeCoverage.php:155
    7.4278   21502912  10. PHP_CodeCoverage->processUncoveredFileFromWhitelist()
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/php-code-
coverage/src/CodeCoverage.php:610
    7.4282   21519616  11.
include_once('/home/travis/build/SaftIng/Saft.rdf/vendor/doctrine/instantiator/tests/DoctrineTest/InstantiatorPerformance/InstantiatorPerformanceEvent.php')
/home/travis/build/SaftIng/Saft.rdf/vendor/phpunit/php-code-
coverage/src/CodeCoverage.php:633

phpunit.xml

@@ -24,13 +24,4 @@
             <directory suffix="Test.php">./Test</directory>
         </testsuite>
     </testsuites>
-    <!-- Define which files are included in the code coverage report -->
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">./</directory>
-            <exclude>
-                <directory suffix="AbstractTest.php">./Test</directory>
-            </exclude>
-        </whitelist>
-    </filter>
 </phpunit>