Remove dead config

JeroenDeDauw · JeroenDeDauw · commit 05728e3b4f66 · 2014-07-27T18:11:23.000+02:00
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
@@ -22,10 +22,4 @@
             <directory>./lib/Doctrine/</directory>
         </whitelist>
     </filter>
-    
-    <groups>
-        <exclude>
-            <group>performance</group>
-        </exclude>
-    </groups>
 </phpunit>
