Revert registration.php exclusion

Author: Willem Wigman

tests/Integration/phpunit.xml.dist

@@ -22,9 +22,6 @@
     <filter>
         <whitelist addUncoveredFilesFromWhiteList="true">
             <directory suffix=".php">../../../vendor/integer-net/*/src</directory>
-            <exclude>
-                <file>../../../vendor/integer-net/*/src/registration.php</file>
-            </exclude>
         </whitelist>
     </filter>
     <!-- PHP INI settings and constants definition -->