Keep PHPUnit config cross-version compatible

Author: Gummibeer

phpunit.xml.dist

@@ -1,7 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="./vendor/phpunit/phpunit/phpunit.xsd"
-         bootstrap="vendor/autoload.php"
+<phpunit bootstrap="vendor/autoload.php"
          colors="true"
          executionOrder="random"
 >
@@ -10,11 +8,6 @@
             <directory suffix="Test.php">./tests</directory>
         </testsuite>
     </testsuites>
-    <coverage processUncoveredFiles="true">
-        <include>
-            <directory suffix=".php">./src</directory>
-        </include>
-    </coverage>
     <php>
         <env name="STEAM_API_KEY" value=""/>
     </php>