remove filter element for forward compatibility

sasezaki · sasezaki · commit 6fad726467f4 · 2023-04-10T08:00:28.000+09:00
diff --git a/phpunit.xml b/phpunit.xml
@@ -15,9 +15,4 @@
             <directory>./tests/</directory>
         </testsuite>
     </testsuites>
-    <filter>
-        <whitelist>
-            <directory suffix=".php">src</directory>
-        </whitelist>
-    </filter>
 </phpunit>
